Michael is busy with his work project that he brought home. His son wants him to put a movie in the DVD player. Michael tells him to wait 10 minutes; however, his son whines and complains so much that Michael decides to put the movie in right now. This be
a. negative reinforcement.
b. secondary reinforcement.
c. erratic behavior.
d. positive reinforcement.

Negative reinforcement

Explanation:

In negative reinforcement a behavior or response is strengthened by removing, or stopping a negative outcome. In other words, negative reinforcement occurs when a present situation of circumstances is removed as a result of an individual's behavior, hence creating a favorable or good outcome for the person.

In this case Michael's son whined and complained to move his father to put a movie in the DVD player, he is most likely going to use this technique some other time, to achieve this result.

b) trade is easy because of the direct line between their major ports. bilateral trade reached 89,6 thousand million.

first, the romans stayed isolated because they had to defend their own territories from neighboring cities that were harassing them, like the etruscans. second, once the romans managed to defeat their neighbors, and started to expand their territory, they started to build roads and bridges. finally, now that the romans have covered their territory with roads functioning as highways, they could mobilize their legions faster to assemble larger military units in a specific place