121" MCQ-04058 John earned $500,000 in his business during the current year, and his wife received investment income of $15,000. John provides more than half of the support of his 50-year-old widowed sister, who lives with John and earned $45,000 in salary. John also provides full support for his two children, an 18-year-old daughter and a 20-year-old son, who is a full-time college student. The family employs a live-in housekeeper and a live-in butler to assist them with their residence. Both the live-in housekeeper and the live-in butler provided all of their own support. How many people qualify as either a qualifying child or qualifying relative for John? 0 Two Four O Five Zero