Which of these statements BEST defines vestigial organs?

Question

Responses
A vital organs that are functional in all organisms of a lineagevital organs that are functional in all organisms of a lineage
B vital organs that are functional only in alternate generations of a lineagevital organs that are functional only in alternate generations of a lineage
C redundant organs present in an organism, which have been functional in the organism’s ancestorsredundant organs present in an organism, which have been functional in the organism’s ancestors
D redundant organs present in an organism, which will be functional in the succeeding generations of the lineageredundant organs present in an organism, which will be functional in the succeeding generations of the lineage

Answer 1

The statement that BEST defines vestigial organs is:

C: redundant organs present in an organism, which have been functional in the organism’s ancestors.

Vestigial organs are typically remnants of structures that served a purpose in the ancestry of an organism but have lost most or all of their original function in the current form of the species.