单选题 According to this passage, the most important factor in developing a sense of trust is ______

【正确答案】 C
【答案解析】[解析] 本题的依据句是“psychologists tell us that mothers create a sense of trust in their children not by the particular techniques they employ but by the sensitiveness with which they respond to the children's needs and by their overall attitude.”,从中可知C项为正确答案。