Pick up the one called accessory pigments:

Explanation

Accessory pigments are integral to photosynthesis, as they allow plants to capture a broader spectrum of light wavelengths than chlorophyll a alone can absorb. Carotenes and xanthophylls are types of carotenoids that absorb light in regions that chlorophyll a does not, while chlorophyll b helps extend the light absorption spectrum. Thus, the correct answer is 'All of these' because all listed options are accessory pigments. Options A, B, and C are incorrect individually because each represents only a part of the full range of accessory pigments.