Match the columns and identify the correct option. [2015]
| Column I | Column II | ||
| A. | Thylakoids | (i) | Disc-shaped sacs in Golgi apparatus |
| B. | Cristae | (ii) | Condensed structure of DNA |
| C. | Cisternae | (iii) | Flat membranous sacs in stroma |
| D. | Chromatin | (iv) | Infoldings in mitochondria |