The answer is "D) Stories and Histories" because Churches and Mosques are supposed to be where people of their religion pray to their Gods and It is quite obvious that stories of their beliefs and histories should be portrayed there. As most of you know a picture is worth a 1000 words so, It would make sense why the architects used art to represent their stories of belief and history.
Have a nice day. :)
Something like this i mean if it show pics you have to chhose from you should post them
Explanation:
I'm saying knowledge of Engineering, since it involves mathematics as well
