Ashely owns stock in a company that has consistantly paid a growing dividend over the last 5 years. The first year Ashely owned the stock she earned $1.71 per share and in the fifth year, she recieved $2.89 per share. What is the growth rate of the dividends over the last 5 years?

a) 7%

b) 11%

c) 12%

d) 5%