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The Anderson Lumber Company has three sawmills that produce boards of different lengths. The following table is a joint frequency distribution based on a random sample of 1,000 boards selected from the lumber inventory. Board Length Sawmill 8 ft 10 ft 12 ft 14 it A 140 10'.) 80 14 B 250 20 100 50 C 160 50 16 20 Based on these data, if a board is selected that is 12 feet long, what is the probability that it was made at sawmill A? O A. 0.20 O B. 0.24 O C. 0.41 O D. 0.08