The red colour of the tomato is due to the presence of 
 

Tomato color varies from green and yellow to red after maturing. Its color changes because of the breakdown of chlorophyll. 

Lycopene is behind the red color of the tomatoes.

Tomato has two types of pigment one is chlorophyll, and another is lycopene.

In the early stages, tomatoes contain lycopene pigment in a small quantity, so it looks green.

Hence, option B is the correct answer.