Use the Following Information When Answering the Corresponding Questions)

Use the following information when answering the corresponding questions) .
In 1668, Francesco Redi did a series of experiments on spontaneous generation. He began by putting similar pieces of meat int identical jars. Four jars were left open to the air, and four were sealed. He then did the same experiment with one variation: In sealing four of the jars completely, he covered them with gauze the gauze excluded flies while allowing the meat to be expos to air) . In both experiments, he monitored the jars and recorded whether or not maggots young flies) appeared in the meat.
-Why was it important that Redi replicate each treatment four times in each experiment?

A) to make sure that he made efficient use of his lab equipment
B) to practice his technique and make sure the experiment was done correctly
C) to make sure that there was enough meat to attract flies
D) to reduce the likelihood of getting an accidental result