\(\&, \#,\) and \(@\) each represents a different digit, and \(\&\) multiplied by \(\#\) is smaller than \(10.\) What is the value of the two-digit number \(\&\#\) if the following multiplication problem is true:
\(\&\#\cdot \#\& = \#@\#\)
(A) 11
(B) 12
(C) 13
(D) 21
(E) 31
Answer: B
Source: Veritas Prep