This college allows students to develop their own interests, to extent they wished．
A. whoever
B. whatever
C. however
D. whenever
网友回答
A. whoever
(答案→)B. whatever
C. however
D. whenever
解析：考察宾语从句。Whatever引导宾语从句Whatever extent they wished作为to的宾语。名词extend程度，用whatever修饰强调名词。