Set up and evaluate an area as a Riemann sum. Use a Riemann sum with 4 rectangles of equal width to approximate the area between f left parenthesis x right parenthesis equals fraction numerator x minus 3 over denominator x end fraction and the x-axis on the interval left square bracket 3 comma 9 right square bracket. Use the left-hand endpoint of each subinterval. A.) 40.5 space u n i t s squared B.) 2.15 space u n i t s squared C.) 31.5 space u n i t s squared D.) 3.15 space u n i t s squared