Why was islamic religion so sucessful

Because it spread organically whereas other religion were spread by violence mostly.

polling is a process and the outcome is not involved in the process itself.

the outcome, which is an unfavorable rating for a particular candidate is not affected by the mechanical process of polling.

it rather depends on the number of people voting in favor of the candidate.

this is an outcome of people's preferences.

the answer wold be b) travel among nations should be regulated by an international organization