Choose the correct alternative. My office is within a stone's throw from the university.

Options

A. a) in a stone's throw
B. b) within a stone throw
C. c) at a stone's throw
D. d) No Improvement

Answer

D

Explanation

No Improvement
within a stone.s throw (Id.) : within a very short distance.
Look at the sentence :
• The police department was located within a stone.s throw of our house.