As a result of the 1905 a)political prisoners were released b)political parties were banned c)czar nicholas 2 was as overthrown d) an elected legislature called the duma was formed

D is the correct answer.

Explanation:

During the Russian revolution of 1905, the Russian empire faced mass political and social unrest. The protests included strikes, peasant unrest, and military mutinies. The protest caused constitutional reforms and Duma was established. The multi-party system and the Russian constitution of 1906 were also a result of the 1905 revolution. The revolution was spiked by the Russo-Japanese war and also by the realization of people that they need reforms.

the authority to tax.