Direction: In the following question, out of the four alternatives, select the alternative which will improve the underlined part of the sentence. In case no improvement is needed, select "No improvement".
The delivery executives exert a lot at the time of festive sales.
1
The delivery executives exerts themselves a lot
2
The delivery executives exert themselves a lot
3
The delivery executives exert them a lot
4
The delivery executives are exert themselves a lot