The 4,000 shares of Medco stock that Diana purchased 11 months ago for $12 per share are now trading at $19 per share. Dianas regular marginal tax rate is 28 percent and her tax rate for long-term capital gains is 15 percent. a. What is Dianas after-tax net cash flow from the sale if she sells the stock now? b. What is Dianas after-tax net cash flow from the sale if she waits one month before selling the stock for $19 per share? c. What do you recommend?