Question

7. ______ can become sources to know about the illiterate, tribal’s, peasants, poor, etc.
a. documents b. folklore, c. diaries

Answer 1

the answer 
will be folklore

Answer 2

Option B i.e folklore is the correct answer.

The folklore such as tales, proverbs, traditional beliefs, jokes etc transfer from one generation to another by word of mouth. These folklore tell us about various aspects of life of the people especially of illiterate's, tribal's, peasants, poor etc. These people are more familiar with the folklore and thus can become a good source to know about them.