单选题 Which of the following is true according to the last paragraph?

A、 Mr. Rubin is the founder of Hillel.
B、 Mr. Rubin thinks that Judaism is not a religion and it's an experience.
C、 Hillel is an organization concerned with Jewish college students in the world.
D、 Hillel has asked certain people to carry out a study about Jewish attitudes towards Judaism.

【正确答案】 D

【答案解析】根据最后一段第三句Hillel委托进行(commission)了一个调查，研究犹太人对犹太教的态度，所以D正确。