Who is the most famous pilot of the lockheed vega 5b?

i think it's b or c hope this

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.

the use of electrical signals that transit messages is know as