In a particular plant, two genes control height and flower color. Tall height (T) is dominant to short height (t). Yellow flowers (Y) are dominant to white flowers (y). A tall, yellow-flowered plant is mated with a short, white-flowered plant. What are the genotypes of the plants involved in this cross?

A. TtYY × Ttyy
B. T_Y_ × ttyy
C. The genotype for either plant cannot be determined from the information given.
D. TTYY × TTyy