Consider the following regression model: ln(y) = \beta_0 + \beta_1 x +\epsilonln(y)=0+1x+. Suppose b_0 = 2b0=2, b_1 = 0.15b1=0.15, R-sq = 0.8, and s_e = 0.9se=0.9. Which of the following statements is a correct interpretation of the slope of x?

a) On average, for every unit increase in x, y increases by 0.15 units

b) On average, for every 1% increase in x, y increases approximately by 0.15 units

c) On average, for every unit increase in x, y increases approximately by 15 percent

d) On average, for every 1% increase in x, y increases approximately by 15%