Marta no longer uses a particular vending machine on campus because it has consistently failed to deliver Marta's snack or soda when she inserted her money and made her selection. Marta's experience BEST illustrates:

A. intermittent .
B. reinforcement.
C. habituation.
D. adaptation.
E. extinction

E. extinction    

Explanation:

Extinction: In psychology, the term "extinction" is described as a process in which a specific conditioned response becomes weak gradually that leads to the disappearance or decrease in the behavior associated with it. As a result, that particular conditioned behavior stops eventually and hence the response gets extinct. The concept of extinction is one of the parts of the conditioning process.

In the question above, Marta's experience best illustrates extinction.

because he is that the right

abu bakr, was a senior companion and—through his daughter aisha—a father-in-law of the islamic prophet muhammad. abu bakr became the first openly declared muslim outside muhammad's family. abu bakr served as a trusted advisor to muhammad.