The adjacent diagram shows chromatographic separation of plant pigments extracted from spinach leaves. The sequence of pigment bands from below upwards is

A

Chlorophyll b, Chlorophyll a, Carotenols and Carotenes

B

Carotenes, Carotenols, Chlorophyll a and Chlorophyll b

C

Chlorophyll a, Chlorophyll b, Carotenes and Carotenols

D

Carotenols, Phycobilins, Chlorophyll a and Chlorophyll b