Direction: In the following questions, a part of the sentence is given in bold. Below are given alternatives to the bold part at (1), (2) and (3) which may improve the sentence. Choose the correct alternative. In case no improvement is needed your answer is (4)
Our country can progress `ul("when only people work hard")`

Options

A. when people only work hard
B. when people work hard only
C. only when people work hard
D. No improvement