1.how did great britain try to achieve balance between arabs and jews in palestine, and how
did its policies change over time?
2.how did relations between iraq and great britain change between world war i and world
war ii?

begins a massive airlift of food, water, and medicine to the citizens of the besieged city

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: