Fact 1: The vomiting reflex is used to remove toxic material from the stomach before it is absorbed. Fact 2: Rabbits lack the vomiting reflex, and are physically almost incapable of regurgitation. Given the two facts above, rabbits are what, so they cannot remove toxic material from their stomachs before it is absorbed?

OPTIONS:
[I] it's bodily water decreases.
[II] single-celled organisms.
[III] one celled organisms.
[IV] living things.
[V] incapable of regurgitation.
[VI] They may not survive..
[VII] basic building blocks of life.
[VIII] members of their own species.
The answer is:
[V]