a. cm
d. SCC
Further explanation
7 main quantities have been determined based on international standards,
1. Length, meters (m)
2. Time, second (s)
3. Mass, kilograms (kg)
4. Temperature, kelvin (K)
5. Light intensity, candela (cd)
6. Electric current, ampere (A)
7. Amount of substance, mol (m)
So the following not a base SI unit
a. cm
cm = 10⁻² m
the SI derived unit of length
d. scc
1 scc(standard cubic centimeter0 = 0.101325 J
the SI derived unit of energy.