Answer:
The correct answer is option A-half the offspring had white eyes.
Step-by-step explanation:
Thomas Hunt Morgan performed a classic experiment on Drosophila melanogaster in 1910.
He performed an experiment by crossing the white-eyed male with red-eyed female and found that in F₁ generation has all the red-eyed fruit fly which were crossed again with white-eyed male and he found that female had red eyes and males have white eyes out of which half of the male were red-eyed and white-eyed.
Thus, option A is the correct answer.