Cathy, an attorney, bills a client $$12,000$ for services rendered in November $2017.$ The client is having cash flow problems and Cathy accepts $1,000$ shares of Petrol Corporation common stock in full satisfaction of the account on July $5,2018.$ On July $5,2018,$ the Petrol stock is selling for $$10$ per share. Cathy sells the Petrol stock on August $10,2018,$ for $$11$ per share. What is the effect of the transactions on Cathy's $2018$ taxable income if

A$)$Cathy is a cash basis taxpayer?

B$)$Cathy is an accrual basis taxpayer?