Chemistry · Some Basic Concepts of Chemistry

Which of the following physical quantities is an SI base quantity, along with its correct standard SI unit symbol?

1. A
   Electric current – \( \text{amp} \)
2. B
   Thermodynamic temperature – \( \text{K} \)
3. C
   Amount of substance – \( \text{m} \)
4. D
   Luminous intensity – \( \text{C} \)