What's the difference? Please

SC

According to a survey of graduating medical students conducted by the Association of American Medical Colleges, minority graduates are nearly four times more likely than are other graduates in planning to practice in cocioeconomically deprived areas.

(B) Minority graduates are nearly four times more likely than other graduates who plan on practicing

(C) Minority graduates are nearly four times as likely as other graduates to plan on practicing.

the correct answer is C which I understand, but what's the problem with B? Both are sounds right to me. anybody clear my confusion, please?

thank you for your help.

C是完整的be likely to do结构

而B显然会让人误解比较的内容，并且曲解了全文的意思。