How does B-fragilis bacteria in the gut microbiome affect human gut health?

In cells, the toxin of fragilis leaves a permanent impact, raising the risk of cancer. Summary: According to recent studies, a microbe located in the colon, which is generally associated with the development of colitis and colon cancer, can also play a role in the development of some breast cancers.

Explanation:

so we know the answer cannot be c because no insect or animal starts as an adult

the answer is a. a swimming larvae

because since they are sea animals they automatticaly have to know how to swim they cannot just sink to the bottom

sorry if this is the incorrect answer.