Someone help me with my history
what ways did the southern states keep former slave for being able to vote
a paying poll taxes and literacy tests
b making them take an oath of loyalty to their state
c they could vote, but not allowed to serve in government

Interest groups representing businesses and investors are often among the most successful lobbying groups for all of the following reasons, except a. such groups have the financial resources to mount sustained campaigns on their own behalf b. these groups' members contribute heavily to many legislators' campaigns and in so doing gain greater access to legislators c. these groups have often been in existence for decades, allowing them to both master the legislative system and develop close ties with legislators d. the members of these groups make up the majority of voters in many districts