Question 2 1 pts A single taxpayer, elderly Bob is a patient in a nursing home for the total of 25 days of 2021. While in the nursing home, he incurs total costs of $6,800. Medicare pays $3,900 of the costs. Bob receives $6,800 from his long-term care insurance policy, which pays benefits while he is in the nursing home. What amount (if any) must Bob include in his gross income in 2021? Round your answer to the nearest dollar, and do not include cents or dollar sign. For example: if the answer is 100 simply write 100, (and NOT $100, $100.00 or 100.00)