Answer:
The metric system is based on the number 10.
Step-by-step explanation:
We have been given an incomplete statement. We are asked to fill in the blank for given statement.
The metric system is based on the number ___.
We know that metric system is an alternative system of measurement used in most countries including the United States. This system includes prefixes like kilo-, hecto-, deka-, deci-, centi-, and milli.
The metric system is based on number 10 as all these units are based on power of 10.
Therefore, option C is the correct choice.
