A scientist wanting to determine the lightest touch that can be felt by various animals compared to human beings would be interested in finding the threshold for touch.

This question is incomplete. Here are the missing options:

The answer is A) absolute threshold.

Explanation:

The absolute threshold is described as the minimal degree of a stimulus that can be detected by a person. This applies for all the senses. For example, the absolute threshold for hearing can be measured by a gradually increasing frequency of sound. A stimulus must be detected at least 50% to be considered as the absolute threshold. The lower the threshold, the more sensitive the person.

it should be c, women were allowed to vote in all states because federal law supersedes state law.

"states can make their own laws, as long as they don't contradict what the federal law states. the states do not have the authority to pass a law that negates a federal law." -google

the boundarys like convergent divergent and transform it causes subduction