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

B