Answer the following question given this paragraph: 

The structure of a chloroplast is shown in Figure below . The chloroplast is surrounded by two membranes. Inside the chloroplast are stacks of flattened sacs of membrane, called thylakoids . The thylakoids contain chlorophyll. Surrounding the thylakoids is a space called the stroma . The stroma is filled with watery ("aqueous") fluid.


Q: Thylakoids in a chloroplast contain what plant pigment?


A:
chlorophyll