Three reinforcements are being considered for an MSE wall: A continuous geogrid having a reinforcement coverage ratio equal to 100 percent. A continuous metallic grid consisting of W4 bars having a diameter equal to 5.7 mm, a distance between longitudinal bars equal to 150 mm, a distance between transverse bars equal to 300 mm, and a reinforcement coverage ration equal to 100 percent A ribbed steel strip having a width equal to 50 mm, a distance between strips equal to 0.75 m, and a reinforcement coverage ration equal to 6.67 percent Estimate the pullout length required for each reinforcement to obtain a pullout resistance equal to 10 kN per meter width of the structure at a depth equal to 1 m below the top of the structure