18. In Chapter 2, Holden decides to visit his teacher, Mr. Spencer, before he leaves. Spencer is at home when Holden shows up. Which subject does Mr. Spencer teach?
From Quiz The Catcher in the Rye: The Beginning
Answer:
History
Mr. Spencer, or as Holden calls him, "Old Spencer", was very sick that day, which Holden described as disgusting as he "isn't too crazy about sick people". Even though Holden flunked History, he kind of likes Mr. Spencer, and vice versa.
Spencer even tells him he didn't want to flunk Holden but had to, and he shows him a test Holden took, in which Holden wrote a little note telling Spencer that although his lectures are interesting, he just can't get interested.