The Kleins filed a joint return for the tax year 2022. They provide more than 50% of the support of Chaim, Eli, and Aaron. Chaim (age 18) is a cousin and earns $2,800 from a part-time job. Eli (age 25) is their son and is a full-time law student. He received a $7,500 scholarship for tuition from his law school. Aaron is a brother who is a citizen of Israel but resides in Italy. Chaim and Eli live with the Kleins. How many dependents can the Kleins claim?