Which action did lonnie smith take to advance the cause of civil rights for african americans in texas?
a. he refused to take a seat in the backs of a city bus
b. he petitioned the governor for the right to attend university of texas
c. he published articles highlighting racism and the state government
d. he filed a lawsuit challenging the races primary system used by democrats

D. Lonnie Smith filed a challenging lawsuit to primary system of races used by democrats to advance the cause of civil rights for African Americans in Texas.

Lonnie Smith, a dentist by profession, was closely associated with the civil rights movement in Texas and was also a part of the National Association for the Advancement of Colored People. It was he who raised his voice against the all-white primaries in Texas and filed a lawsuit in the Supreme Court.

It was after the Supreme Court passed the judgment in the favor of Lonnie Smith the blacks got the right to vote in Texas.  

cannabis

explanation:

(assuming this is the us) google it. law states you can't have weed.

i'll just take the points xd