Answer:
Wag masyadong malandi o gumamit ng proteksyion para maiwasan ang maagang pag bubuntis
The correct answer is B) the North Vietnamese and Vietcong's war strategy was to avoid defeat until the Americans gave up.
They were always on the retreat and resorted to guerrilla warfare. They would hide, attack at night, set traps, and other similar tactics until they completely demoralized the American army.
I think it's called infectious agent or something close to that.
I would say that the answer is D. Hope this helps...