The correct option is A Chl - a
Chlorophylls are major light harvesting pigments of green plants. They are of 8 major types- chlorophyll a, b, c, d, e, bacteriochlorophyll a and b and chlorobium chlorophyll. The chlorophyll a is the major photosynthetic pigment, which is found in all photosynthetic organisms. Hence, it is also called as universal photosynthetic pigment.