Match the columns and identify the correct option.
List I
List II
A Thylakoids
1 Disc-shaped sacs in Golgi apparatus
B Cristae
2 Condensed structure of DNA
C Cisternae
3 Flat membranous sacs in stroma
D Chromatin
4 Infoldings mitochondria
A- 3, B- 4, C- 2, D- 1
A- 4, B- 3, C- 1, D- 2
A- 3, B- 4, C- 1, D- 2
A- 3, B- 1, C- 4, D- 2

A thylakoid is a membrane-bound flattened sac embedded in the stroma of the chloroplast. They are the site of the light-dependent reactions of photosynthesis. A crista is the infolds of the inner membrane of a mitochondrion. It provides a large amount of surface area for chemical reactions to occur on. A cisterna refers to a flattened membrane disk that makes up the Golgi apparatus. A typical Golgi has multiple stacks of anywhere from 3 to 7 cisternae (usually around 6) stacked upon each other like pancakes. Chromatin is a complex of macromolecules found in cells, consisting of DNA, protein and RNA. Thus, the correct answer is option C.