Which lines in the description of the knight from the "general prologue" of the canterbury tales tells us that he had been part of the crusades, military expeditions in which christians sought to win the holy land?

On one hand, i aspire to an ivy league vocation: 1 professor of the sciences in higher education. 2 but like noble amphibians that thrive on land and in the stream, 3 i've got another world of which i like to gladly dream. 4 some say that it's abnormal; my affections are exclusive. 5 in science, they say, emotions are something quite elusive. 6 line 3 exemplifies which kind of figurative language? a) hyperbole b) metaphor c) onomatopoeia d) simile