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A special lottery is to be held to select a high school student of the year. There
are 800 seniors, 500 juniors, and 100 sophomores who applied.
Each senior's name is placed in the lottery 3 times; each
junior's name, 4 times; and each sophomore's name, 4 times.
What is the probability that a senior's name will be chosen?
A) 1/2
B) 4/8
C) 5/10
D) 8/3
E) 3/7