Why was lenin unhappy with the results of the february revolution?

Answer & Explanation:

Vladimir Lenin was unhappy with the results of the february revolution because it displaced the Tsar (a ruler of Russia, similar to a king) and put in place a civil government.

As one of the leaders of the Russian Socialist Movement, he wants a more fundamental  transformation in government as he was against going to war with Germany which the incumbent government then continued to pursue

option d is correct. corroborated sources of historical evidence   is necessary to validate a claim about an event in history.

historians tend to use written sources, but audio and visual materials as well as artifacts are important objects that supply information to modern historians.

historical sources are usually divided into two categories: primary and secondary sources. depending on the historian's intent, some sources shift their designation. determining what type of sources toimplement, and the level of credibility and reliability of those sources, is a significant step in critical thinking for the historian.

explanation:

study of past cultures