Step 1: Understanding Neutral Colours.
Neutral colours are those that do not have a strong chromatic intensity. White, black, grey, and brown are considered neutral colours. They are often used in designs and artwork to balance other more vibrant colours.
Step 2: Verifying the Options.
- Option (1): White and black are neutral colours, making this the correct answer.
- Option (2): Red and yellow are warm colours.
- Option (3): Green and blue are cool colours.
- Option (4): Orange and violet are secondary colours.
Conclusion:
Therefore, the correct answer is (1) White and Black.