Match the columns and identify the correct option.
| Column I | Column II | ||
|---|---|---|---|
| A. | Thylakoids | (i) | Discshaped 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 |
(a) A(iii), B(i), C(iv), D(ii)
(b) A(iii), B(iv), C(ii), D(i)
(c) A(iv), B(iii), C(i), D(ii)
(d) A(iii), B(iv), C(i), D(ii)