D.cm³
Step-by-step explanation:
This is because there are also other units for measuring large and small quantities of volume.
cubic kilometer km³ 1,000,000,000 m³
hectometer cubic hm³ 1,000,000m³
decameter cubic dam³ 1,000 m³
cubic meter m³ 1 m³
cubic decimeter dm³ 0.001 m³
cubic centimeter cm³ 0.000001 m³
cubic millimeter mm³ 0.000000001 m³