Solution

Cristae : The inner membrane of mitochondria folds inward into a finger like projection known as cristae. It increases the surface area for absorption.
Cisternae : A space containing fluid, such as those occurring between the membranes of flattened sacs of the Golgi apparatus and the endoplasmic reticulum, also between the two membranes of the nuclear envelope.
Thylakoids : Thalakoids are disc shaped structure which are arranged in stacks known as grana. These contain the photosynthetic pigments and are site for light reaction during photosynthesis. Hence, the correct answer is as follows :
Column I Column II
(a) Cristae (ii) Infoldings in mitochondria
(b) Cisternae (iii) Disc-shaped sacs in Golgi apparatus
(c) Thylakoids (i) Flat membranous sacs in stroma