There are many factors that can make recognizing a bias hard, but one of them is if we have the same bias.
Say for example, that one person thinks that taller people are smarter and they listen to a speech that makes the same statement - they can then think that it's just confirming what they know, and can be a real fact instead of their bias. This will make it harder for them to recognize the bias.
Answer:
It's an ethnic group so C.
Explanation:
I did a test related to this a few days ago.
I'm pretty sure he discovered the Pacific Ocean.
At their beginning, the Arabs were an incredibly weak and loose collection of cities that could have easily been destroyed by Rome, yet the long peace with Rome led to prosperity, therefore B is the answer.
Answer: in my opinion personality developed by how you are treated and the way you react. For example if you have been wronged and you yell at the person or lose control you have a high tempered/energetic personality if you react sternly yet calmly then you have a very relaxed and Understanding.
Hope this helps!
Explanation: