A stock had returns of 5.10%, 31.60%, and -21.20% in each of the past three years. Over the past four years, the arithmetic average annual return for the stock was 4.75%. What was the geometric annual return for the stock over the past four years?

	a.	2.91% (plus or minus 0.02 percentage points)
	b.	3.06% (plus or minus 0.02 percentage points)
	c.	3.37% (plus or minus 0.02 percentage points)
	d.	5.07% (plus or minus 0.02 percentage points)
	e.	None of the above is within 0.02 percentage points of the correct answer