40 pts HELP WITH BIO PLS

Problem 3: A tall plant with blue flowers was crossed with a short plant with yellow flowers.
8. If this was an example of incomplete dominance, the offspring would all have *
1 point
blue and yellow flowers
green flowers
blue flowers
yellow flowers
9. If this was an example of codominance, the offspring would all have *
1 point
blue and yellow flowers
green flowers
blue flowers
yellow flowers
10. If all offspring are tall, which of the following is a possible conclusion? *
1 point
The height of the plant is controlled by multiple alleles.
Tall is the recessive pheontype for height.
All offspring are heterozygous.
Tall and short are both dominant phenotypes.