How do you interpret the estimated value of coefficient of EDU in the following equation: ln(SALARY)= 1 + 0.02ln(EDU)

where SALARY is annual salary (in thousands) and EDU is years of education?

a.
we predict that 1 year increase in years of education leads to $2000 increase in salary

b.
we predict that 1% increase in years of education leads to 2% increase in salary

c.
we predict that 1 year increase in years of education leads to 2% increase in salary

d.
we predict that 1% increase in years of education leads to 0.02% increase in salary