Answer: The genotype for the offsprings is Pp only.
Explanation-
Purple color of flowers is a dominant trait over the pink colors, which is a recessive trait. The allele for the purple flower is P and for the pink flower is p.
The genotypes of the parents is PP ( purple) and pp ( pink).
When these parents are crossed, they produce offsprings with the genotype Pp. The phenotype of these offsprings is Purple color.