Answer: The right answer is the A) Europeans believe Indians are an ignorant, uncultured people.
Explanation: Just to elaborate a little on the answer, it can be added that the author implies that Europeans certainly believed that Indians were an ignorant, uncultured people, since he is comparing their astonishment after having seen them producing works of art with traditional tools with the astonishment that a Hindu would likewise express after having seen a chimpanzee behaving like a human.