the decision to investigate if alcohol was a contributing factor to an incident rests with what individual

Commanding officer.

Explanation:

Commanding officer can be defined as any individual who works with the armed forces and is in charge of a group or operation in a military unit. They are saddled with the responsibility of providing guidance and acting as a role model or example by being morally upright, confident, positive and dominant to their subordinates.

Hence, the decision to investigate if alcohol was a contributing factor to an incident rests with a commanding officer.

this is a pretty broad question and can be a pretty lengthy answer. since 1900, women have gained a lot more rights and have become active in the workforce. with women being in the workforce, men play a larger role in family life. many family tasks are shared between men and women, whereas, women used to be the sole family caretakers.

that should get you started at least.

a is the final ! : )