Context: This passage describes the myotonia congenita trait in goats:
Myotonia congenita is a condition that causes temporary muscle stiffness. When goats with myotonia congenita attempt to run from a resting position, their leg muscles often stiffen, causing them to fall over. Because of this behavior, these goats are referred to as fainting goats. Myotonia congenita is also found in other mammals, including horses, cats, and humans.
In a group of goats, some individuals have myotonia congenita and others do not. In this group, the gene for the myotonia congenita trait has two alleles. The allele for having myotonia congenita (M) is dominant over the allele for not having myotonia congenita (m).
This Punnett square shows a cross between two goats.
What is the probability that a goat produced by this cross will be homozygous dominant for the myotonia congenita gene?
A. 1/4
B. 0/4
C. 4/4
D. 2/4
E. 3/4
Identify the correct option from the choices provided and respond with the letter of the correct option.

A