Choose the correct sentence?

Question

a
While running, my leg suddenly began to cramp through the race.
b
While I was running the race, my leg began to cramp.
c
My leg suddenly began to cramp while running the race.
d
Through the race, my leg began to cramp.

Answer 1

The correct sentence is:
b) While I was running the race, my leg began to cramp.

This sentence is clear and grammatically correct.