In the following questions, a part of the sentence is printed 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).
I will be with you in one quarter of an hour.
a quarter of one hour
a quarter of an hour
a quarter of hour
a quarter of hour
B.
a quarter of an hour