In a certain species of fish, the genotype TT has three vertical stripes, the genotype tt has one vertical stripe, and the genotype Tt has two vertical stripes. What are the predicted striping pattern phenotypes and their frequencies in the following crosses?

A. cross between a three-striped and a two-striped fish?
B. cross between a two-striped and a one-striped fish?
C. cross between a three-striped and a one-striped fish?