The standard unit for measuring volume is the a)milliliter b)liter c)deciliter d)cubic centimeter

The standard unit for measuring volume is the B. liter.
Standard units for measuring anything are the most basic units, without any prefixes - so liter, meter, etc. So it's not different here - milliliter and deciliter are incorrect, and cubic centimeter is commonly used for volume, but it is not the standard unit.

Where is the graph ?