A healthy 32-year-old man lifts weights regularly as part of his work-out. In one of his biceps muscle fibers at rest, the length of the I bandis 1.0 μm and the A band is 1.5 μm. Contraction of that muscle fiberresults in a 10% shortening of the length of the sarcomere. What isthe length of the A band after the shortening produced by musclecontraction? A: 1.50 μm B: 1.35 μm C: 1.00 μm D: 1.90 μm E: 0.45 μm