Tyler is conducting an experiment in order to determine the effect that fertilizer A and fertilizer B have on grass. He conducts multiple trials and concludes that the grass grows better using fertilizer A. How could Tyler make sure his results were trustworthy?

A. Another scientist could reproduce the same experiment.

B. Another scientist could offer suggestions to make the experiment better.

C. Tyler could add a third fertilizer to his experiment.

D. Tyler could change the amount of water the grass received