Many Incan cities were easily defended because they were built- in canyons
on mountaintops, winding roads, difficult to get to
in rainforests
on islands

B. on mountaintops, winding roads, difficult to get to

hOPE THIS HELP BRAINLIES TPLEASE

on mountains aka B

i confess that there are several parts of this constitution which i do not at present approve, but i am not sure i shall never approve them: for having lived long, i have experienced many instances of being obliged by better information or fuller consideration, to change opinions even on important subjects, which i once thought right, but found to be otherwise. it is therefore that the older i grow, the more apt i am to doubt my own judgment, and to pay more respect to the judgment of others.

answer: (fluidity)is the correct answer.

explanation: because of this characteristic, success on the battlefield depends in large part on the ability to adapt to proactively change events to our advantage as well as to react quickly to constantly changing conditions