What inference can be drawn from the lack of us action in response to japanese aggression against china in 1937
a-americans supported the japanese over the chinese.
b- americans did not believe japan threatened them directly
c- do united states did not care about china
d- do united states depended on japanese trade

B. Americans did not believe Japan threatened them directly.

Prior to World War II, America had a foreign policy of non-intervention. This meant that they tended to act against a foreign power only when directly threatened.

In 1937, the Chinese and Japanese troops had a minor engagement in which aggression led them to engage in an undeclared war between the two countries. This was influential in the Japanese way of thinking that ultimately encouraged them to join the Axis. However, because the US did not believed Japan to be a direct threat, it did not take any action to address this aggression.

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:

maybe i can