Joanie wants to improve her game. She trains hard every day.

In which two ways can the sentences be correctly combined?

Joanie wants to improve her game, she trains hard every day.

Because Joanie wants to improve her game, she trains hard every day.

Joanie wants to improve her game, so she trains hard every day.

Joanie wants to improve her game, but she trains hard every day.

Therefore, she trains hard every day, Joanie wants to improve her game