Answer:
The correct answer is option c. "Rr x Rr".
Step-by-step explanation:
Roan cattle is a type of breed known for its color and spotting patterns. Two of the most common breeds of roan cattle are the Belgian Blue and Shorthorn. In order to produce roan cattle, the F1 generation results from the breeding of red (RR) and white (rr) homozygotes. The resulting heterozygous (Rr) offspring are later crossed (Rr x Rr) to produce the F2 generation of roan cattle.