Context: This passage describes the Tobiano patterning trait in horses:

In a group of horses, some individuals have Tobiano patterning and others do not. In this group, the gene for the Tobiano patterning trait has two alleles. The allele for having Tobiano patterning (B) is dominant over the allele for not having Tobiano patterning (b).
Clyde is a horse from this group. Clyde has the homozygous genotype bb for the Tobiano patterning gene.
Based on this information, what is Clyde's phenotype for the Tobiano patterning trait?
A. having Tobiano patterning
B. not having Tobiano patterning
From the given choices, select the correct answer and reply with the letter of the chosen option.

B