Read the passage and answer the given question.

Maria buys books from a dealer for her bookstall. She buys 40 comic books, 30 storybooks, and 20 colouring books. The cost of a colouring book is $x. The cost of a comic book is $5 more than twice the cost of a colouring book. The cost of a storybook is $7 less than thrice the cost of a colouring book.

Which of the following expressions will give the total cost of the comic books bought by her?

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• A 2x+5
• B 2x
• C 40(2x+5)
• D 80x

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