How many soldiers were killed in world war i?

a) 10 million
b) 1 million
c) 5 million
d) 20 million

20 million

Explanation:

The total number of military and civilian casualties in World War I, was around 40 million. There were 20 million deaths and 21 million wounded. The total number of deaths includes 9.7 million military personnel and about 10 million civilians.

maybe #3? try that i think its correct

you will need these

an outline of all three paragraphsan identification of the historical era that you are writing aboutan explanation of the term mass productiona description of two ways new technology affected industrya conclusion that shows how new technologies allowed industrialization to grow