Which of the following can be a cause of fratricide? units remaining in a assigned sector. failure in a direct fire control plan. gunners accurately identify thermal signatures. over supervision of units.

I believe the answer is: failure in a direct fire control plan

In war, fratricide refers to the act of killing our own troops rather than opposition. This often happened because there is a miscommunication among the soldiers in their fire control plan, which make them unable to determine the timing and the positioning of their shootings.