The complex sentence is;
D) If you are attending the Fourth of July celebration, I suggest you wear the red, white, and blue shoes; you will definitely win the contest.
A complex sentence is a group of words that contain two independent clauses and one dependent clause.
In the selected sentence above, we can appropriately refer to it as the independent clause because it meets all the criteria. There are two independent clauses namely:
These clauses are independent because they make complete meaning on their own. The dependent clause is:
If you are attending the Fourth of July celebration
So, option D is right.
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