How did plebians gain power in the republic (history)

In 494 BC the plebians detached and formed their own plebian council. they elected tribunes to protect their rights; with the tribunes they could not vote against unjust laws passed by patricians/the senate. the citizen assembly elected consuls, tribunes, and magistrates, could declare war and ratify peace treaties, and could approve or disapprove laws proposed by the Senate. They created laws that said patricians could no longer rule unjustly against them. Debt bondage was gone, priesthood was available, plebians could be in the Senate - but laws of the Senate apply to all while the citizen assembly's laws only apply to the plebians. (youre lucky im in class w/ my notebook rn lol)

Ithink the answer is d but don’t answer it. i need points.

The answer is a price setter because they are the ones they add on the price.