You have a deficiency when you are lacking the right amount of nutrients.

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.

i wish it got that cold here ): im in florida and i've never even seen snow, it never feels like a real holiday. i hope you have a good one with your family !