James l. farmer worked on launching the with the intention of challenging segregation on interstate bus travel, which had technically been declared illegal in 1946. a) unification parades b) freedom rides c) equal voting rights d) first flight into space

I Believe the answer is:  C)Equal Voting Rights 
At that time, African american citizens were not allowed to enter the same public bus that white citizens used.
Launching equal voting right would increase the amount of representatives that would fight for African American citizens and help james in his quest to abolish the segregation law.