Answer:
The correct answer is -
a. - as the distribution of the phenotype diminishes
b. -cross sunflowers exhibiting the greatest phenotypic variance
Explanation:
Artificial selection refers to the practice of breeding plants or animals for particular desired traits by consciously choosing which individuals reproduce.
-Variance indicates how individual traits differ from the average characteristics of the species or how they deviate from the mean, demonstrating the degree of measurement differences.
-If the distribution remains unchanged, variance indicates no variation. However, if the spread indicates a range change in measurements, the variance will also change.