A Geneticist Developed a New Type of Pest-Resistant Walnuts

Multiple Choice

A geneticist developed a new type of pest-resistant walnuts. These walnuts produce 75% of pest-resistant walnut trees and 25% of susceptible (not resistant) trees when two resistant trees are crossed. If a grower crossed 100 such pairs of trees for 100 offspring and did this many times over many years and plots, she should get:

A) approximately 70% of resistant trees over all plots and years.
B) exactly 70% of resistant trees over all plots and years.
C) exactly 70% of resistant trees in all plots and years.
D) None of the answer options is correct.