Our monitor requested that ________. [ ]

A. all the class studied more carefully the problem

B. the problem was more carefully studied

C. with great care the problem could be studied  

D. all the class study the problem more carefully

淮南师范学院现有（）个国家级特色专业建设点，（）个省级特色专业，（）个省级专业综合改革试点，（）个省级人才培养模式创新试验区。