Options are:
a). Something made from fermented ricce
b). Something made primarily of oxygen and nitrogen
c). Something that is secreted in a shallow cup.
d). Something that grows into the ground
e). chain called a polynucleotide
f). Something that vaporizes into the air
g). Something that grows on a bush
h). chemical compound NaCl

Fact 1: Nectar is used for attracting pollinators by plants. Fact 2: Nectar is secreted in a shallow nectar cup at the base of flower. Given the two facts above, what do plants use to attract pollinators?
Answer:
c).