单选题 The word" this" ( Line 4, Para 1 ) refers to ______.

A、 the immediate causes of the students' absence from classes
B、 teachers' tolerance of the students who rarely show up in classes
C、 the author's belief that students are permitted to cut classes
D、 the belief that freedom is essential in cultivating a sense of responsibility

【正确答案】 D

【答案解析】由此句的前句得知：有种见解认为，人们只有首先被赋予选择的自由，才能培养责任感，因而在很大程度上对学生逃课持默许的态度。