Based on available data, the Indo-European language families have the highest number of speakers. It has an estimated 3.6 billion speakers in this region.
This is the case because <em>English </em>which is the most widely spoken language in the world originates from this language family.
The answer is c, because the men know that if Curley has found Lennie, they would of tortured him and killed him brutally, and so George wanted to shot him out of mercy