Which sea-nymph (a Nereid) is the mother of Achilles in Greek myth and is associated with attempts to protect him from harm?

Which sea-nymph (a Nereid) is the mother of Achilles in Greek myth and is associated with attempts to protect him from harm?

Options:

1. Thetis
2. Amphitrite
3. Galatea
4. Thalassa

Correct answer: Thetis

Explanation: Thetis is a Nereid and mother of Achilles, named in Homer's Iliad (8th century BCE); later tradition says she dipped Achilles in the River Styx to render him nearly invulnerable.

Created 2026-03-10T20:48:37.451Z. Updated 2026-03-10T20:48:37.451Z.