Answer:
Incomplete dominance, 0%
Step-by-step explanation:
In incomplete dominance, the phenotypes of the dominant and recessive genes are blended. In this case, red and white are blended to create pink.
A Punnett square can be used to determine the phenotypes of the offspring of a white flower and a pink flower. In this case, we'll let "R" represent a gene for a red flower and "r" represent a gene for a white flower.
r r
R Rr Rr
r rr rr
The "Rr" genotype would result in a pink flower, and the "rr" genotype would result in a white flower. It is impossible for this cross to result in a red flower.