Jane, age 65, who lives with her unmarried son, Jack, received $7,000, which was used for her support during the year. Her sources of support were as follows: Social Security Benefits $1,500 Jack 2,600 Carol, an unrelated friend 800 Dwayne, Janes son 500 Emma, Janes sister 1,600 Total $7,000 a. Who is eligible to claim Jane as a dependent? b. What must be done before Jack can claim the exemption? c. Can anyone claim head-of-household status based on Janes dependency exemption? Explain. d. Can Jack claim an old age allowance for his mother? Explain