Respuesta :

It seems you forgot your options, but here are some things found in a chloroplast:

grana
Granal thylakoids
Stroma
Nukleloids (DNA rings)
Ribosomes
Starch granules
membranes

Now, some examples of thing NOT found in a chloroplast:

Endoplasmic Reticulum (that's another organelle)

Answer:

B) Cristae is the answer