A hermaphroditic plant species has 5 alleles at itsself-compatibility locus, S1, S2, S3, S4, S5. The genotype ofthe stigma is S3S4. A pollen grain lands on the stigma withthe genotype S1S3. In this case,
A. the pollen grain germinatesand fertilizes an ovule.
B. the pollen grain aborts.
C. the stigma surfacebursts.
D. the pollen grain germinates,fertilizes an ovule, but the ovule aborts.
E. none of the aboveapplies.