In each question, a sentence is written in four different ways. Choose the option which gives the most effective and grammatically correct sentence. Pay attention to grammar, word choice and sentence construction.

A. The average male investor expects to see all his investment stocks moving up, and they are often disappointed.

B. The people in my country are smaller than in other countries

C. The number of failures of product in final quality inspection are increasing every year.

D. Before restructuring a firm, the CEO must consider the employees.