John Supports Kevin, His Cousin, Who Lived with Him Throughout

Multiple Choice

John supports Kevin, his cousin, who lived with him throughout 2016. John also supports three other individuals who do not live with him: Donna, who is John's mother
Melissa, who John's stepsister
Morris, who is Kevin's brother Assume that Donna, Melissa, Morris and Kevin each earn less than $4,050. How many personal and dependency exemptions may John claim?

A) 2
B) 3
C) 4
D) 5