Given Dimensions:
Time: Day $\rightarrow$ Month $\rightarrow$ Year
Location: City $\rightarrow$ State $\rightarrow$ Country
Product: Item $\rightarrow$ Item Type $\rightarrow$ Item Category
Each dimension has 3 levels.
General Formula:
If there are $n$ dimensions and the $i^{th}$ dimension has $L_i$ levels, then the total number of possible cuboids are:
\[
\prod_{i=1}^{n} (L_i + 1)
\]
Here,
\[
L_1 = L_2 = L_3 = 3
\]
\[
\text{Total cuboids} = (3+1)(3+1)(3+1)
\]
\[
= 4^3 = 64
\]
\[
\boxed{\text{Total number of cuboids} = 64}
\]
Correct Option: (A)