Answer:
c. they attract pollinators, which carry the pollen from one flower to other flowers.
Step-by-step explanation:
Petals are mostly the bright and colorful structures. The whorl of petals is called corolla. The colorful appearance of petals serves to attract many insects and other pollinators towards the flowers.
When these pollinators visit the flower, the pollens are attached to their bodies. They deliver these pollens to the stigma of another flower. In this way, petals help in pollination which is then followed by pollen germination and fertilization events.