GMAT SC 大全 -section c -5

5.     If anyone at InterCom Financial Advisers would have anticipated, or even suspected, the impending sale of the Koniko kelp processing plant, they would have advised owners of Koniko stock to unload all shares immediately.

(A) If anyone at InterCom Financial Advisers would have anticipated

(B) Had anyone at InterCom Financial Advisers anticipated

(C) If any people at InterCom Financial Advisers would have anticipated

(D) If any people at InterCom Financial Advisers had anticipated

(E) If anybody at InterCom Financial Advisers anticipated

答案为D， 搞不清楚为什么B表示的虚拟语句不行，请NN们指教以下。。。