Subject: mathqa
Question: a contest will consist of n questions , each of which is to be answered eithertrueorfalse . anyone who answers all n questions correctly will be a winner . what is the least value of n for which the probability is less than 1 / 100000 that a person who randomly guesses the answer to each question will be a winner ?
Option: 
A: 10
B: 1000
C: 100
D: 50
Answer: B