In how many ways can $47$ be written as the [sum](https://artofproblemsolving.com/wiki/index.php/Sum) of two [primes](https://artofproblemsolving.com/wiki/index.php/Prime_number)?
$\text{(A)}\ 0 \qquad \text{(B)}\ 1 \qquad \text{(C)}\ 2 \qquad \text{(D)}\ 3 \qquad \text{(E)}\ \text{more than 3}$
For $47$ to be written as the sum of two [integers](https://artofproblemsolving.com/wiki/index.php/Integer), one must be [odd](https://artofproblemsolving.com/wiki/index.php/Odd) and the other must be even.  There is only one [even](https://artofproblemsolving.com/wiki/index.php/Even) prime, namely $2$, so one of the numbers must be $2$, making the other $45$.
However, $45$ is not prime, so there are no ways to write $47$ as the sum of two primes $\rightarrow \boxed{\text{A}}$.