Final answer:
The assertion related to infidelity is based on a non-marital definition that includes failure to keep promises. Historically, women have proven themselves capable of dealing with wartime responsibilities, therefore the statement concerning their incapability is false.
Step-by-step explanation:
The statement If you don't keep your promises, people may accuse you of infidelity leans on the broader definition of the term "infidelity", which is not solely about marital betrayal, but generally refers to being unfaithful or disloyal to a commitment or obligation. Answering Exercise 8.3.2, many women in history were actually capable of handling the burdens of war when their male family members went off to fight, taking on new roles and responsibilities which were crucial to the war effort. This statement is false as historical evidence shows women's critical participation in both World Wars and other conflicts, where they worked in factories, served as nurses, and managed home front tasks that were essential during times of war.