Ivana is studying insect life cycles. She placed a male and a female gnat inside a terrarium. The female gnat laid eggs. Ivana observed and recorded all of the stages she saw the eggs go through. Her results are shown in the table below.
Stage Time in Stage
egg 24 hours
larva 7 days
pupa 6 days
adult 2 weeks
Which of the following is a valid conclusion that Ivana can draw from her data?
A.
A gnat generally does not live for more than 1 week.
B.
A gnat is a crustacean, not an insect.
C.
A gnat completes its life cycle in about 1 month.
D.
A gnat life cycle has more than five stages.