Which activity is the best example of a paleolithic lifestyle

A.hunting mammoths

Explanation:

The Palaeolithic period of human history which is also called the Old Stone Age, refers to a period in human history when humans first started making stone tools.

At this point in time, humans still had not learnt to farm and so were nomadic in nature with hunting and gathering as their main food source. A Palaeolithic activity therefore would involve the hunting of Mammoths which were still in existence at the time.

yup! you are correct it is b.