What is the definition of marsupial?
A)the gland of a mammal that produces milk for the young
B)a mammal that has just one passage for elimination and egg laying
C)a tube that connects an unborn baby to its mother for nourishment
D)having a placenta, the organ that nourishes young until birth
E)a mammal which gives birth to a fetus that moves into a pouch for protection and nourishment