The african snail is a large snail that eats at least 500 different types of plants and is one of the top 100 invasive species in the world. what is the most likely way the snail was introduced into florida? a small animal was carrying one on its fur. a boy brought a pair home as pets. two swam across the ocean. one stuck to an airplane’s wing.

I believe the answer is A boy brought a pair home as pets.
Snails (and all small animals in general) could only make small movements so it wouldn;t be possible if they could covert the distance between Africa to Florida on their own. They will also be blown away by the wind pressure if they got stuck on the plane.
So the most logical explanation would be if the boy who visit Africa (maybe as a tourist) bought them as a souvenir and brought them home.