Final answer:
Commanders must conduct a command climate assessment within 60 days of assuming command and semi-annually after that.
Step-by-step explanation:
Commanders, Commanding Officers (COs), and Officers in Charge (OIC) must conduct a command climate assessment within 60 days of assuming command and semi-annually thereafter. The correct answer to the quiz question is B) Within 60 days and semi-annually thereafter.
This assessment is critical for maintaining an understanding of the morale, welfare, and overall atmosphere within the command, which can affect its operational effectiveness and the well-being of its personnel.