Janice and Julian, both 66, are married taxpayers filing jointly. They have itemized deductions consisting of the following: Home mortgage interest $21,200 State income taxes $9,800 Property taxes $6,300 Charitable contributions $7,700 Gambling losses $9,000 Tax return preparation fee $770 Unreimbursed medical expenses $14,630 Their adjusted gross income (AGI) for 2020 is $413,800, including gambling winnings of $4,000. What is the amount of their allowable itemized deductions? A) $49,000 B) $54,770 C) $69,400 D) $42,900