Answer:
D. threat; challenge
Explanation:
Anything that causes an organisms stress process to initiate is called a stressor.
Threat is something that can cause us harm or something which we perceive might cause us harm.
A challenge is a threat, if overcome can cause us to grow our personality.
So, a threat is something which we cannot overcome while a challenge is a threat which we perceive can overcome and will be beneficial for us.
The correct answer is A. the Hebrews
All three, Canaanites, Egyptians, and Sumerians, had polytheistic religions which means that there were numerous gods in their beliefs. Hebrews had a single all powerful god and this type of belief transferred over to Christianity and later Islam.
So they don't waste money if the real thing doesn't work.
It saves the clean up of trial and error.