Answer:
Correct answer is C- Patriot soldiers were low on ammunition .
Explanation:
Option C is the correct option as according to the sources it was said because Patriots had little powder and didn't wanted to waste it if they were not sure that they will hit the target.
All other options are therefore false. It was a daylight, so it could be dark. British soldiers were in their usual red uniforms, and position of Patriots was even better.