Why does Islamic doctrine forbid the representations of Muhammad and Allah in works of
art? 

after the roman empire fell, some of its cultural achievements lasted for some time and others were lost. lost achievements include architecture , coins, and literacy. however, several things remained, such as the language. people may not have spoken this language in every city, but it influenced the languages they did speak. they also created the julian , which was commonly used until the eighteenth century.

letter d is correct.

not sure might be he acquired the entire oregon territory from great britain