The correct option is C Phycocyanin c
Phtochrome is a photoreceptor and is bright blue or bluish green in colour (pigment), which is similar to phycocyanin. Phytochrome is a pigment that plants use to detect light. It is sensitive to light in the red and far red region of the visible spectrum. Phycocyanin is a pigment from the light-harvesting phycobiliprotein family, along with allophycocyanin and phycoerythrin. It is an accessory pigment to chlorophyll.