The model shows the results of an experiment carried out by Gregor Mendel to see how the trait of height is inherited in pea plants. The letters T and t on the model show the alleles of each type of plant. What does the model show about the relationship between alleles and plant height?
A. All of the tall plants have two T alleles.
B. The short plant has two recessive alleles.
C. t is the dominant allele and T is the recessive allele.
D. Plants that have one T allele and one t allele can be either tall or short.