Which are correct definitions for history?
choose all answers that are correct.
a. an explanation of the past through the telling of stories of what actually happened and why
b. an account of the impact of human behavior on the environment
c. the story of human activity before writing was developed
d. the story of change over time documented with evidence

aloha~! my name is zalgo and i am here to you out on this amazing day. to answer your question, yes, nonzero numbers can have a greatest common factor and that would be 1. still don't get it? let me considering every number is divisible by 1 and hence every number has 1 as a factor of theirs. so, if 2 nonzero numbers didn't share any gcf (greatest common factor), they would still have a factor in common and that would be 1.

i hope that this ! : p

"stay and stay proud! " - zalgo

(by the way, do you mind marking me as brainliest? i'd greatly appreciate it! mahalo! x3)