Context: In a group of Labrador retrievers, some individuals have black fur and others have brown fur. In this group, the gene for the fur color trait has two alleles. The allele for brown fur (f) is recessive to the allele for black fur (F).
This Punnett square shows a cross between two Labrador retrievers.
What is the probability that a Labrador retriever produced by this cross will be homozygous dominant for the fur color gene?
A. 1/4
B. 0/4
C. 4/4
D. 2/4
E. 3/4
Identify the correct choice from the options below and respond with the letter of the correct option.

B