Today, you sold your Riot Blockchain, Inc stock (ticker: RIOT) for $54.2/share. Last year, you paid $51.5/share for that stock. During the year, RIOT paid you $2/share in dividends. If inflation averaged 2.6% during the year, your approximate real rate of return on the RIOT investment is:

a) 3.3% b) 9.1% c) 11.7% d) 11.6% e) 6.5%