Answer:
Option A
Step-by-step explanation:
As given in the question, the flower plants of varied height characteristics are used.
The characteristics of a plant being tall, short and intermediate is due to its genetic structure.
Also, it is given that trait of being tall is dominant over other characteristics and thus with time only tall species will be there. This represents variation in the characteristics of offspring governed by natural crossing and selection. Sexual reproduction causes these variations and thus involve crossover of characteristics of both the mating species.
In asexual reproduction, look alike offspring are produced
Hence, it lies in the part A of the venn diagram