Recent evidence suggests that neither frustration theory nor sequential theory explains PREE. the sequential theory better explains PREE. the frustration theory better explains PREE. both sequential and frustration mechanisms can promote responding during extinction.

c. both sequential and frustration mechanisms can promote responding during extinction.

Explanation:

Both sequential and frustration theories explain why there is increased resistance to extinction even when there should be extinction. The sequential theory explains that the subject's response increases when zero reward is followed by a reward intermittently so that the subject's memory of nonreward and reward trials boost response. In the same vein the frustration theory explains that a subject's response is increased with the partial reinforcement extinction effect whereby the subject is unable to notice when extinction begins(the discrimination hypothesis) and therefore keeps anticipating reward

the factors that the economies of the muslim empires prosper were:

1- land trade routes-located between three continents  

2- sea trade routes

trade contributed to the spread of muslim empires, and with that islamic culture led to a growing feeling of internationalism resulted in the transfer of technology, science, and other cultural forms.