John is primarily invested in equity and fixed income. In the start of the year, his portfolio is worth $1.5 million ($500,000 in Fixed Income, and $1,000,000 in Equity). During the year, he received $25,000 in coupon payments on his fixed income security and $20,000 in dividend payments. At the end of the year, the value of his portfolio is $1.6 million ($500,000 in Fixed Income and $1,100,000 in Equity). John's income tax rate is 30% and experiences different tax rates for different sources of income, where:\ \ Coupon Payments are not taxed\ Dividend Payments are taxed at 20%\ Capital Gains are taxed at 10%\ What is John's after tax return for his portfolio?\ \ a. \ 8.73%\ \ b. \ 8.19%\ \ c. \ 5.73%\ \ d. \ 6.11%