Henry molaison (h. m.) had his hippocampus removed in both hemispheres. it was found that molaison could learn new procedural tasks (e. g., mirror tracing) with the same ability as typical control participants. however, he could not remember completing the task. this suggests that:

the first one is d and the second a

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.