Answer :

To determine what is used to measure how much space an object takes up, consider the following options:

a) Length
b) Area
c) Volume
d) None of the above

- Length: This is a measurement of distance from one end of an object to the other. It only accounts for one dimension.

- Area: This measures the extent of a surface. It is calculated by multiplying two dimensions (e.g., length and width) and is measured in square units. Area measures how much surface an object has but not how much space it occupies.

- Volume: This measures the amount of space an object occupies. It considers three dimensions (e.g., length, width, and height) and is measured in cubic units. Volume thus gives a clear representation of how much space an object takes up.

- None of the above: This option would imply that none of the other options correctly measures the space an object takes up, which is not accurate in this context.

Therefore, the correct option is:

c) Volume

Volume is used to measure how much space an object takes up.