For an integer $n$ let $S_n=\{n+1, n+2, \ldots \ldots, n+18\}$. Which of the following is true for all $n \geq 10$ ?
For an integer $n$ let $S_n=\{n+1, n+2, \ldots \ldots, n+18\}$. Which of the following is true for all $n \geq 10$ ?
- [KVPY 2013]
- A
$S_n$ has a multiple of $19$
- B
$S_n$ has a prime
- C
$S_n$ has at least four multiples of $5$
- D
$S_n$ has at most six primes
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