One way the national equal rights league fought for equality was to
a. reject reconstruction
b. lobby congress
c. stop scalawags
d. creat black codes

The correct option is "B. Lobby congress

A lobby group or lobby is a collective with common interests that carries out actions aimed at influencing the Public Administration to promote decisions favorable to the interests of that particular sector of society. The first political uses of this term are from the 19th century.

the compromise of 1850 was a package of five separate bills passed by the united states congress in september 1850, which defused a four-year political confrontation between slave and free states on the status of territories acquired during the mexican–american war

the answer to your question is:

strong-mayor system