A natural number $a$ written inside an $n$-sided regular polygon is represented by a symbol that denotes the number $n \cdot a^{n}$.
For example, the symbol represents the number $3 \cdot 2^{3} = 24$.
Accordingly, which of the following symbols represents the value of the product?
A) [symbol A]\\
B) [symbol B]\\
C) [symbol C]\\
D) [symbol D]\\
E) $\square 4$