Angela is a sub-contracted engineer who earns $10,000 per month. She purchased an individual disability, policy that provides a tax-free monthly benefit of $6,000 if she is disabled. The policy also has a residual benefit. Several months agr Angela suffered a heart attack. After the qualification period she began to receive benefits. Recently her doctor advised her that she can return to work in the morning, but must attend rehabilitation in the afterncon for at least the next three months. Based on this work restriction, Angela is able to earn $2,500 per month. Given this scenario how much doos the residual benefit pay Angela every month? Select one: a. $4500 b. 50 c. $7000 d. $1500