His father won’t be able to leave for Varnasi until they have arrived
In questions given below, a part of the sentence is italicised and bold. Below are given alternatives to the italicised part which may improve the sentence. Choose the correct alternative. In case no improvement is needed, option ‘D’ or option ‘E’ is the answer.
His father won’t be able to leave for Varnasi until they have arrived
A. until they arrive
B. until they will have arrived
C. until they will arrive
D. No improvement
