5. The length, width, and height of a rectangular prism are exactly 3 consecutive natural numbers, and the numerical value of its volume is equal to twice the numerical value of the sum of all its edges. What is the surface area of this rectangular prism?
A. 74
B. 148
C. 150
D. 154
5. Solution: Let the three edges of the cuboid be $a-1, a, a+1$, then its volume is $a^{3}-a$, and the sum of all its edges is $[(a-1)+a+(a+1)] \times 4=12 a$. Therefore, we have $a^{3}-a=12 \mathrm{a} \times 2$, which simplifies to $a^{3}=25 \mathrm{a}, a^{2}=25, \mathrm{a}=5$, meaning the edges of the cuboid are $4,5,6$.

Thus, its surface area is $(4 \times 5+4 \times 6+5 \times 6) \times 2=148$.
Answer: B