Answer:
Semicolon (;)
Step-by-step explanation:
The colon can used for listing things. For example, "I need these things for school: a pencil, a notebook, a binder, and a folder. The semicolon, however, can be used to combine two sentences that can stand on its own. For example, "Bring some money with you; we are going to Panda Express today." So, the correct answer would be a semicolon.