C. the ability to do something well without wasted time or effort
Answer: In The United States Supreme Court rules in Brown vs. Board of Education of Topeka that division in the public schools is unequal and, therefore, illegal (1954). civil rights racial segregation protesting all of the above
Explanation:
You have to look at how this is written if we said student the sentence would
look and sound confusing.
Gloat in the sentence means to brag. Basically, the third selection. "To make fun of someone."
Hopefully this helps :)