With respect to evolutionary pressure, which of the following is most supported by the information in the article?

The extinction of any venom-producing animal group, young or old, is an example of negative selection.

If a venom-producing animal group is undergoing negative selection, then it probably has already undergone positive selection.

Because of positive selection, venoms produced by younger animal groups affect a greater number of target animals than do venoms produced by older animal groups.

When negative selection begins to influence an animal group’s venom production, rapid evolutionary changes become impossible.

After a venom-producing animal group undergoes negative selection, its evolutionary process can be considered complete.