Giving brainiest to first one that answers

which of the following quotes from the first men in the moon implies a theme of social class?

a) " apart from their controlling intelligence these subordinates are as inert and as umbrellas in a stand. they exist only in relation to the orders they have to obey, the duties they have to perform."
b) "the light came from a tumultuous growth of livid fungoid shapes--some indeed singularly like our terrestrial mushrooms, but standing as high or higher than a man."
c) "the experts for the most part ignore me completely, even as they ignore each other, or notice me only to begin a clamorous exhibition of their distinctive skill."
d) " of the condition of the moon sexes, marrying and giving in marriage, and of birth and so forth among the selenites, i have as yet been able to learn very little."