Step 1: Understanding Secondary Colours.
Secondary colours are created by mixing two primary colours together. The primary colours are red, blue, and yellow. When these primary colours are mixed, the following secondary colours are formed:
- Red + Yellow = Orange
- Yellow + Blue = Green
- Blue + Red = Purple
Step 2: Verifying the Options.
- Option (1): Red is a primary colour, not secondary.
- Option (2): Orange is formed by mixing red and yellow, making it a secondary colour.
- Option (3): Yellow is a primary colour, not secondary.
- Option (4): Blue is a primary colour, not secondary.
Conclusion:
Therefore, the correct answer is (2) Orange.