Which statement is an example of a complex sentence? a. after they finished studying, juan and maria went to the movies. b. corinne was definitely, indisputably the right person for the job. c. mike wanted to go to the pool, but jess wanted to go to the mall. d. the late math teacher quietly hurried down the hall.

C. Mike wanted to go to the pool, but Jess wanted to go to the mall.

Explanation: A complex sentence is composed of and independent clause and a dependent clause. They are usually adjoined by conjunctions such as, but, and, or, etc. We can see in Choice C that there is a contrast with the word "but" between Jess and Mike. Because of this we can assume that this is the correct answer.  

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