Answer:
b. $5,600
Step-by-step explanation:
A cash basis taxpayer will report revenues and expenses when they are actually collected or paid for. The business transaction is not directly related to the moment that the payment occurs (unlike accrual accounting).
in this case, Ralph should report all the income related to monthly rental payments = $5,000 (Nov. 2008 - Oct. 2008) + $600 (the three last months of rent) = $5,600. Security deposits are not considered rental revenue, so they should not be reported as such.