What happened at the 1968 democratic convention
a. the democrats chose an antiwar candidate.
b. violence broke out between some protesters and police.
c. martin luther king, jr., was assassinated.
d. college students protested the war by having a “teach-in.”

The correct answer is B. At the 1968 Democratic Convention, violence broke out between some protesters and police.

Explanation:

The 1968 National Convention of the Democratic Party was held in Chicago from August 26 to 29, with the purpose of electing the candidate for the 1968 presidential election.

The protesters against the war protested throughout the convention, clashing with police around the convention center, the Chicago International Amphitheater (on the streets, as well as in Lincoln and Grant parks). Mayor Richard J. Daley maintained a particularly harsh line against the protesters, refusing to allow meetings, rallies or marches, and demanding that the necessary force be used to subdue the masses.