Suppose that 100 pollen grains land on a stigma,and 50 mature seeds are formed in the fruit.What does this indicate about the pollination process and success?

A)50% success: 100 pollen grains grew to 50 ovules, and double fertilization occurred.
B)50% success: evidently, only 50 sperm pollinated 50 anthers.
C)50% success: 50 sperm fertilized 50 eggs, and 50 sperm fused with 50 polar nuclei.
D)50% success: 50 sperm fertilized 50 eggs, and 50 sperm fused with 100 polar nuclei.