Final answer:
The largest snowball fight involved 5,834 participants, which took place in Saskatoon, Canada, and the closest answer option is B. 5,000.
Step-by-step explanation:
The largest snowball fight ever recorded involved 5,834 participants according to Guinness World Records. This monumental event took place on January 31, 2016, in Saskatoon, Saskatchewan, Canada, during the PotashCorp Winter Shines Festival.
While the options provided are A. 2,000 B. 5,000 C. 7,000 D. 10,000, the closest figure to the actual number of people who participated is B. 5,000.
However, it's important to note that the actual figure surpasses this option, as more than 5,000 people took part in this historic snowball battle.