Question 1 (1 point)
Under what conditions is the binomial coefficient
$\binom{n}{k}$
defined?
When $0 \le n \le k$, and $k$, $n$ integers.
When $0 < k < n$, and $k, n$ integers.
Only when $n$ and $k$ are non-negative integers.
It is defined for all integers $n$ and $k$.
Only when $n$ and $k$ are positive integers.
