What countries entered the fighting because they had pledged to aid Poland?

I think it was France and Great Britain, but i'm not 100% sure

Explanation:

The French and British

Explanation:

They both promised to aid Poland if there was German aggression against Poland. This promise was a treaty signed between Poland and France. However, this was known as the French and British Betrayal of Poland in 1939 because the Western Allies had a complete miscalculation of both Germany's and Poland's strategies and their respective abilities to implement them.

when studying cause and effect, historians usually group the causes into different categories. for example, cultural causes reflect how a society’s literature and art convey the way the society saw itself in relation to the rest of the world. another resource that historians use to understand society is pop culture, which tells them the trends and ideas that are preferred by the common people. when studying cause and effect, it’s important to remember multiple causation, or the idea that an effect could have several causes and vice versa.  

the correct option is “cultural causes” since art and literature are related to the culture of a place. culture is determined by literature, art, music.

the correct option is “pop culture” since it reflects the likes and ideas of common people whereas the rest of the options do not focus on common people.  

the correct option is “multiple causation” since it refers to the idea that events are caused by multiple reasons, not just a single one.