Answer:
C). The Americans were persuaded to join the war against Germany after seeing the telegram.
Step-by-step explanation:
The given excerpt from 'Dark Game' provided various details that make readers deduce that 'after seeing the Zimmermann telegram in 1917, the Americans were convinced to join the war against Germany.' The telegram reveal the military alliance between Mexico and Germany that infuriated America and eventually brought them to the battlefield. It was later revealed by Arthur Zimmermann that the telegram was deliberately encoded to bring America into the picture. Thus, option C is the correct inference.