"the main difference between a positive and negative reinforcer is:
a positive reinforcer means something is and
a negative reinforcer means something is "

given/added

Taken away.

Explanation:

When conditioning a behavior, there are two ways to make a person learn. One is by using reinforcers and the other is by using punishments.

A reinforcement is an stimulus that increments the probability of a response.

On the other hand, a punishment is an stimulus that decrements the probability of a response.

Both of them can be positive of negative

Therefore, the main difference between a positive and negative reinforcer is: a positive reinforcer means something is given/added and a negative reinforcer means something is taken away.

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

its d i know cause i've been googling it