Petals:
a. are present mainly to protect the stamens and carpels.
b. serve to attract insects to collect and disperse fruit.
c. serve as landing pads for pollinators.
d. serve to attract animals to collect and disperse pollen.
e. serve all of the above purposes.

Petals d. serve to attract animals to collect and disperse pollen.

Explanation:

Petals serve to attract animals to collect and disperse pollen. This is because petals are modified leaves that surround the reproductive parts of flowers protecting them. They have super bright colors and different shapes so they attract pollinators and animals. Petals have different functions depending the type of plant repelling or attracting specific pollinators.

the rocks are classified by the geological process they are formed by. the three main groups of rocks are igneous, metamorphic, and sedimentary. minerals are not they are classified under the chemical classes they are in. these groups include silicates, sulfates and carbonates.