A snail moves by its muscular
(a) Wings
(b) Foot
(c) Fins
(d) None of these

Snails belong to the Molluscs family. Shells are the exoskeleton present in the Molluscs members such as snails, oysters, made up mostly of calcium carbonate and a very small amount of protein.

  A snail walks or drags itself by producing a coating of mucus beneath it through powerful muscular contractions in its foot muscle, which also decreases the danger of injury from sharp things. This remarkable mode of locomotion enables snails to traverse virtually any barrier, even steep inclines and slopes.