What is the primary function of petals in flowering plants?

The primary function of petals in flowering plants is to attract pollinators. Petals are usually brightly colored and may have unique patterns, textures, or fragrances that make them appealing to various pollinators like bees, butterflies, and birds. This attraction is crucial for the process of pollination, which is necessary for the reproduction of many plants. By facilitating pollination, petals indirectly contribute to the plant's ability to produce seeds and propagate its species.

The other functions associated with the other choices, while they may be relevant in different contexts, do not directly pertain to the primary role of petals. For instance, structural support is typically provided by the stem or other structural components of the plant, not the petals. Nutrient storage commonly occurs in roots or other specialized tissues, rather than in petals. Additionally, the protection of the ovary is primarily the role of the sepals and other floral structures surrounding the reproductive organs, rather than the petals, which focus more on attraction.