Alan took three years of French in high school before switching to studying German in college. He has noticed that he has forgotten a lot of his French vocabulary. His forgetting of French is most likely the result of

His forgetting of French is most likely the result of retroactive interference.

Retroactive interference is when more recent information interferes with the recollection of older information.

the arab empire adopted the muslim religion as their main belief. arabs would influence the people from the territories they invaded towards islam (the muslim belief).

nevertheless, throughout the history of the arab empire, rulers brought intellectual individuals from other religions to their centers of learning. these other foreigners included jews, christians, greeks, persians, and indians.   these resulted in the adoption of important knowledge developed by these cultures by the arabic empire. for example, the works of aristotle were translated from greek to arab and indian scientists brought the numerical concept of "zero" to the arabs.

nowadays, 93% of the arab population is muslim, which at the same time is subdivided in sects including the sunni, zaini, alawi, shia. the remaining 7% is composed mainly of christians.

i dont know this man