The correct answer is B. Complex
Step-by-step explanation:
The sentence " I won't go to the movies unless you come as well" can be classified as complex because this sentence includes one independent clause "I won't go to the movies" one dependent clause " you come as well" and these two are linked with a subordinating conjunction "unlesss" that establishes the relation of dependence between both that exist in complex sentences. Also, this sentence is not simple because a simple sentence contains only one independent clause or compound because a compound sentence contains two or more clauses that are independent and have same importance which means they do not have a dependency relationship.