A Plant Has a Set of Multiple Alleles for "Self

Multiple Choice

A plant has a set of multiple alleles for "self" gene "S," which causes self-incompatibility (the ability of plant to reject its own pollen or pollen from closely related plants) to fertilize the egg.Here is a set of plants (sporophytes) with genotypes:
i.S₁S₂
ii.S₂S₃
iii.S₃S₃
iv.S₁S₃
The S₃ pollen from S₂S₃ parental sporophyte cannot fertilize the eggs of

A) i
B) ii
C) iii
D) iv