单选题 .  People at the lower end of the income scale take more pleasure in their relationships and enjoy caring for and connecting with others, according to a study published Monday in the journal Emotion. By contrast, the positive emotions experienced by people with higher incomes are mainly focused on themselves, the research suggests.
    "People who are poorer are more reliant on others to get by," said Paul Piff, lead author of the study. "They really prioritize relationships because of their reduced resources, and so they are more likely to really focus on emotions that bind them to one another and find satisfaction and delight in relationships through compassion and love."
    For the study, Piff and his co-author, Jake P. Moskowitz, surveyed more than 1 500 Americans ranging from 24 to 93 years old. The questions were designed to measure the magnitude of seven emotions experienced each day: amusement, awe, compassion, contentment, enthusiasm, love and pride. Previous research suggests these seven separate feelings are the underlying individual components of general positive emotion. Next, Piff and Moskowitz created statistical models and then analyzed the relationship between income and each of the seven different emotions underpinning happiness.
    "As income increases, as you rise in the rankings of household income, your tendencies—or daily experiences—of pride, amusement, contentment go up, and your experience of compassion and love and awe go down," Piff said. Enthusiasm was the one emotion unaffected by wealth, with both rich and poor experiencing the same level.
    There are reasons for expecting wealth and income to shape certain emotions, noted Piff. "Wealth makes you less reliant on other people," he said. "Because of that, you're more likely to focus on emotions that make you feel independent and different from other people—things that make you stand out. Of course these aren't absolute differences; it's not the case that wealthy people don't feel any compassion or any love. It's just that wealth buffers you from experiencing as much of it as other people do."
    David G. Blanchflower, a professor of economics at Dartmouth, said he was "unimpressed" with the study. Blanchflower, who did not participate in the research, questioned the focus of the study and said it was "unclear what it actually finds." "There is a very large literature showing happiness and life satisfaction is related to income," he said. One example is this study that found higher income increases access to social support, self-esteem and opportunities and so enhances happiness.
    However, Piff questions whether wealth is "unequivocally (明确地)" linked to increased happiness. The emotions that contribute most to a sense of well-being and health are the emotions that bind you to other people: compassion, love and gratitude, he said. These are the connective glue between people. "It's our ability to be social that is so important to our well-being and our vitality as individuals and as a species." Piff said.1.  Why would poor people rank their relationships according to their importance?______