Question 19Let $s_1$ be the sum of the first $n$ terms of the arithmetic sequence $8,$ $12,$ $\ldots$ and let $s_2$ be the sum of the first $n$ terms of the arithmetic sequence $17,$ $19,$ $\ldots.$ Then $s_1=s_2$ for:no value of $n$one value of $n$two values of $n$four values of $n$more than four values of $n$