Question

After the mall went out of business, local teenagers had nowhere to hang out.

The mall went out of business, local teenagers had nowhere to hang out.
After the mall went out of business. Local teenagers had nowhere to hang out.
which sent me has proper punctuation

Answer 1

The answer is option a. After the mall went out of business, local teenagers had nowhere to hang out.

Answer 2

A.

Step-by-step explanation:

A is correct.

B is incorrect. To make it correct, you would have to replace the comma with a semicolon.

C is incorrect. To make it correct, you would replace the first period with a comma.