The answer for your question is C lack of food and water and B disease
Guadalcanal.
That was the first biggest offensive.
By defeating Germanic invaders
The best option would be that apart from military conquest, the reigns of Pacal the Great, Huayna Capac, and Moctezuma I all featured "<span>Large-scale public works projects," since these were deemed essential to the success of the state. </span>