Which of the following are the important floral rewards to the animal pollinators ?

Nectar and pollen are rewards to pollinators as they are consumed by pollinators.

(1) Floral fragrance is attractant but not reward. Stigma is the terminal part of gynoecium which receives pollen grains during pollination.

(2) Sporopollenin is the protective material that forms the exine of the pollen grain, while stigma secretes certain chemicals in the form of exudates.

(3) Colour and large size of flower are attractants, not rewards to pollinators.