Which answer most precisely describes the location of mecca and medina
a. arabian peninsula
b. holy land and mesopotamia
c. north africa
b. southwest asia

The answer is "a. Arabian Peninsula".

The Arabian Peninsula is a peninsula of Western Asia arranged upper east of Africa on the Arabian plate. From a land point of view, it is viewed as a subcontinent of Asia.  

There is proof that human residence in the Arabian Peninsula goes back to around 106,000 to 130,000 years ago. However, the cruel atmosphere verifiable forestalled much settlement in pre-Islamic Arabian promontory, aside from few urban exchanging settlements, for example, Mecca and Medina, situated in the Hejaz in the west of the peninsula.

c) all of the above