he put his house in order once more got out his books and prepared to tussle with a difficult mathematical problem.

Which context clues helps you unlock the meaning of the word tussle?
a. you would assume that tussle is a synonym of books
b. you would assume that tussle is an antonym of books
c. you would assume that tussle is an antonym of problem
d. you would visualize how you would feel when faced with a difficult math problem







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