Which of the following best describes the effect of stress on working memory capacity?
A) Stress has no effect on the capacity of working memory.
B) Stress increases the capacity of working memory only marginally.
C) Stress can reduce the effectiveness of working memory by reducing its capacity.
D) Stress increases the capacity of working memory dramatically.

i want to say death; parole, probation, and fines are still being used all the time.

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.