Jill and John, married filing jointly, have provided more than 50% of the support for two minor children and Jill's mother. The children each had interest income of less than $700. Jill's mother received a taxable pension of $2,750, dividends of $1,500, and interest of $1,000. How many dependents can the taxpayers claim on their 2019 tax return? A. 2 B. 3 C. 1 OC D. 0