Answer
a.
Work Step by Step
Option b. is incorrect. Viviparous animals get nutrients from within the mother's body during gestation.
Option c. is incorrect. Ovoviviparous animals develop within the mother's body but are nourished by a yolk sac and not from nutrients from the water.
Option d. is incorrect. There is no such thing as "nonviparous."
Option a. is correct. Oviparous animals lay eggs so that their young develop outside the mother's body.