Urn 1 contains 6 red balls and 4 black balls. Urn 2 contains 4 red balls and 6 black balls. Urn 3 contains 4 red balls and 5 black balls. If an urn is selected at random and a ball is drawn, find the probability it will be red.
A) 
B) 
C) 
D) 
Correct Answer:
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