I believe it is “The teacher’s books”
Take the L means "Take The Loss"
Which is mostly used for flunking a test, being dumped, being stood up, being beaten up or robbed.
THE WEAKNESS OF PUBLIC MORALITY
In “Young Goodman Brown,” Hawthorne reveals what he sees as the corruptibility that results from Puritan society’s emphasis on public morality, which often weakens private religious faith. Although Goodman Brown has decided to come into the forest and meet with the devil, he still hides when he sees Goody Cloyse and hears the minister and Deacon Gookin. He seems more concerned with how his faith appears to other people than with the fact that he has decided to meet with the devil. Goodman Brown’s religious convictions are rooted in his belief that those around him are also religious. This kind of faith, which depends so much on other people’s views, is easily weakened. When Goodman Brown discovers that his father, grandfather, Goody Cloyse, the minister, Deacon Gookin, and Faith are all in league with the devil, Goodman Brown quickly decides that he might as well do the same. Hawthorne seems to suggest that the danger of basing a society on moral principles and religious faith lies in the fact that members of the society do not arrive at their own moral decisions. When they copy the beliefs of the people around them, their faith becomes weak and rootless.
C. The platypus, which is a mammal, has a bill like a duck and feet like an otter.
"which is a mammal" is an adjective clause. An adjective clause is used to describe a noun and usually begins with one of these words: that, when, where, who, whom, whose, which, and why. In this sentence, the adjective clause begins with "which" and describes the platypus, which is a noun.
