The protagonist in daniel defoe's the life and adventures of robinson crusoe belonged to the middle class. what was the effect of portraying him as a youth belonging to a middle-class family (rather than an upper-class family)?

a. it appealed to be a broader readership, especially in the middle class

b. it generated much excitement among middle- and lower- class youth.

c. it made up upper-class readers aware of the differences within the middle class

d. it drew severe criticism from upper-class of the time