Q:random variable that follows binomial distribution possible, property, following

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Schweser Questionbank ID- #1479
Which of the following could be the set of all possible outcomes for a random variable that follows a binomial distribution?
A) (-1, 0, 1).
B) (0, 0.5, 1, 1.5, 2, 2.5, 3).
C) (0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11).
D) (1, 2).
The correct answer was C)
(0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11).
This reflects a basic property of binomial outcomes. They take on whole number values that must start at zero up to the upper limit n. The upper limit in this case is 11.
This question tested from Session 3, Reading 9, LOS d, (Part 2)
anyone can explain this?