Which sentence is written correctly?

Megan said “Some vegetables grown in the school gardens are being used in the school cafeteria.”

Megan said, “some vegetables grown in the school gardens are being used in the school cafeteria.”

Megan said, some vegetables grown in the school gardens are being used in the school cafeteria.

Megan said, “Some vegetables grown in the school gardens are being used in the school cafeteria.”

The correct sentence is: Megan said, "Some vegetables grown in the school gardens are being used in the school cafeteria."