The expected return of the stock can be calculated as follows:
Expected Return = (Dividend Yield) + (Capital Gains Yield)
Dividend Yield = Annual Dividend / Stock Price = $2 / $79 = 0.0253
Capital Gains Yield = Growth Rate of Dividends = 2.90%
Expected Return = 0.0253 + 0.0290 = 0.0543 = 5.43%
Therefore, the expected return of this stock is 5.43%, which is closest to 5.51%.