Tsar Alexander II:.a. was assassinated in spite of freeing the serfs. b. was an oppressive ruler who reversed all the reforms of his father. c. led Russia to victory in the Crimean War. d. was an enlightened ruler who industrialized Russia.

a. was assassinated in spite of freeing the serfs.

Explanation:

He freed serfs, and because of this he is counted as the most democratic Tsar. He was assassinated in march of 1881.

It cant be b because he was not a oppressive ruler.

It cant be c since his coronation was on 7 September 1856 the year the Crimean War ended.

And it could be d but a is more specific

Hope this helps :)

it is

a

asked for and recieved from the united states