Final answer:
The tectonic plate that includes the Lesser Antilles is the Caribbean Plate.
Step-by-step explanation:
The tectonic plate that includes the Lesser Antilles is the Caribbean Plate. The Caribbean Plate is a mostly oceanic tectonic plate that borders the North American Plate, the South American Plate, and the Cocos Plate. It is responsible for the formation of the series of islands known as the Lesser Antilles, which are located in the eastern Caribbean Sea.
Learn more about Tectonic Plates