Answer:
Explained
Step-by-step explanation:
Sporophyte is is the dyploid multicellular in life cycle of plant or alga. It is developed when a hyploid egg is fertilized hyploid sperm so each sporophyte cell has a double set of chromosomes that is one set from each parent.
Now coming to the question dominant sporophyte generation lead to increased evolutionary fitness because dyploid tissues contain a backup if one allele is damaged.