Final answer:
The correct metric/SI abbreviations from the choices given are 'l' for liter and 'g' for gram. Liter is used for volume (1 l = 1 dm³) and gram for mass (1 g = 1/1000 kg). Other correct abbreviations include km for kilometer, mg for milligram, and cl for centiliter.
Step-by-step explanation:
The official metric/SI abbreviations that apply from the choices given are: c) l for liter and d) g for gram. The other options provided contain errors in notation and are not standard SI units or their abbreviations. Let's also define these abbreviations in terms of base units:
Liter (l) - The liter is a unit of volume. It is not an SI base unit but is accepted for use with the SI. One liter is equivalent to one cubic decimeter (1 l = 1 dm³).Gram (g) - The gram is a unit of mass. The base SI unit for mass is kilogram (kg), but gram is used as a more practical unit for smaller masses. One gram is one-thousandth of a kilogram (1 g = 1/1000 kg).
Other correct metric/SI abbreviations related to the exercises provided are:
Kilometer (km) - A unit of length. One kilometer equals one thousand meters (1 km = 10³ m).Milligram (mg) - A unit of mass. One milligram equals one-thousandth of a gram (1 mg = 10³ g).Centiliter (cl) - A unit of volume. One centiliter equals one hundredth of a liter (1 cl = 10² l).