Answer : a semicolon between the clauses
In joining two independent clauses meaning two sentences that can stand alone as a sentences, it is best to use a semicolon (;) between the clauses. The semicolon connects two related complete sentences. It can also be used together with a conjunctive adverb to join two sentences that have a close meaning. Aside from those uses, the semicolon is also used to lessen the confusion when listing several items within a sentence. One important thing to remember in using semicolon is not to capitalize the word following the semicolon.
