While conducting these difficult tests, the state driving inspectors often seemed stern and unyielding.

Which of the following is the best way to write this sentence?
1) tests, the state driving inspectors
2) tests the state driving inspectors
3) tests. The state driving inspectors
4) tests; the state driving inspectors
5) tests while the state driving inspectors

I think its 5, is that correct?

3 answers

No, the sentence is fine as is.

a

100% sure

A is the correct answer