The Gray Panthers struggle to change laws in the US to reduce or eliminate inequality based on age. They do not wish to replace society's existing social system; they only want to make some adjustments to it. The Gray Panthers are an example of a:

Reform Movement

Revolutionary Movement

Resistance Movement

Public Opinion Movement

Reform Movement

Explanation:

A reform movement is aimed at changing practices that the community is used to, to another stance that is more ideal and favorable for the masses. A reform simply seeks to modify something to a more acceptable level and not to eliminate it totally.

That is what the Gray Panthers sought for. They did not aim at replacing the existing social system, but only sought to reform or adjust the age limits which they viewed as unjust.

it should be d or b but i'm sure it's d