1. Anything (a) ’that is’ useful and (b) ’spread so fast’ has to (c) ’be considered’ one of the (d) ’greatest invention’ of all time and a (e) ’matter to influence’ civilization. Here, which two underlined sections require changing to correct the sentence?

• A. a, c
• B. a, c
• C. a, c
• D. a, c

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