Assimilatory powers means the capable of taking (gas, light, or liquids) into a solution and having the power or capacity or tendency to absorb or soak up something.
The correct answer is A. The phenotype of the F1 generation exhibit all inflated pods since allele P which characterizes inflated pods is the dominant trait. They only carry the allele p which characterizes constricted pods but they will not exhibit the trait. This recessive trait is masked by the presence of the dominant trait.