5. The rate, in % per foot, at which light is absorbed as it passes through water, is proportional to the intensity, or brightness B, at that point. We will assume that at the surface of the water, a depth
L = 0, the brightness B = 100%. At a depth of 10 feet (L = 10), there is 50% brightness (intensity).

Of the following, which statement or statements accurately reflect a way in which credit can be safer than cash? i. if your credit card gets stolen, you can cancel it and get your money back. ii. it is harder to lose a single credit card than a large number of bills. iii. if a merchant does not honor the agreement, you can call the credit company and dispute the charges. a. i and iii b. ii only c. iii only d. i, ii, and iii