There are a few iron nails in a box, out of which a few are defective. From the non-defective iron nails, a few nails can be classified to be of first grade quality. What is the probability that a randomly selected iron nail from the box is of first grade quality if it is known that the probability of selecting a defective item is 4% and 75% percent of the non-defective items are of first grade quality? A) 0.96 B)0.72 C)0.75 D) 0.69

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