Identify $X$ from the given figure of a chloroplast.

The plastid that stores xanthophyll is known as $ . . . . . . $.

Which of the following is a food-storing plastid?

Which of the following options correctly matches $A, B, C,$ and $D$ indicated in the given sectional view of a chloroplast?

When green tomato fruits turn red,then

Are the different types of plastids interchangeable? If yes,give examples where they are getting converted from one type to another.