Julia (AGI $100,000) provides more than 50 percent of the support for three individuals throughout 2020: Theresa, a child not related to Julia, age 13, lives with Julia all year long and has no income, Julia's Aunt Lucy's daughter, Margaret ,age 15 who has no gross income, lives with Julia all year and has gross income of $3000; and Emma, Julia's daughter, age 20 and a full-time student who lives in her own home all year and has gross income of $4000. What is the Child Tax Credit or Other Dependent Credit for Julia? Select one: O a. $4000 O b. $1000 O c. $1500 O d. $2500