Question

this event led the united states to enter wwii:
zimmerman telegram
pearl harbor
ohios missed field goal on new years 2022
sinking of lusitania

Explanation:

The attack on Pearl Harbor by Japan on December 7, 1941, led the United States to enter World War II. The Zimmermann Telegram was related to US entry into WWI, the sinking of Lusitania was a WWI - related event, and Ohio's missed field goal is a sports event unrelated to WWII.

Answer:

B. Pearl Harbor