Answer:
The correct option is C. 5,400
Step-by-step explanation:
Consider the provided number.
![5.4\cdot 10^3](https://tex.z-dn.net/?f=5.4%5Ccdot%2010%5E3)
If the exponent of 10 is a positive number then you need to move the decimal point right as much as the exponent value.
If the exponent of 10 is a negative number then you need to move the decimal point left as much as the exponent value.
Now consider the provided number.
![5.4\cdot 10^3](https://tex.z-dn.net/?f=5.4%5Ccdot%2010%5E3)
Here the power of 10 is positive, so move the decimal point right as shown.
![5400](https://tex.z-dn.net/?f=5400)
Hence, the correct option is C. 5,400