Sporophyte generation  - It is found in both seed and seedless plant. Dominant phase of the life cycle of the seedless  plants is diploid sporophyte while in seed plant  male and female gametes fuses to produces a diploid zygote which develops into a sporophyte.
Pollination - It occurs in seed plants only
Sporophyte contains male and female reproductive structures -  It is found in both seed and seedless plant. 
Single fertilization - It occurs in both seed and seedless plant
Sperm cells transported by water to egg cells - seedless plant only
 
        
                    
             
        
        
        
The answer is A.) artificial selection
        
                    
             
        
        
        
Answer:
change in chemical reactions