Explanation

Complementary colours are pairs of colours that are opposite each other on the colour wheel. This means that they have the highest contrast with each other, making them stand out when used together. Examples of complementary colour pairs include:
· Red and green
· Blue and orange,

Other choices do not fit as well. Each has a reason why it does not answer the question correctly. Understanding why wrong answers are incorrect helps reinforce the right answer.

This knowledge is important for Home Economics. It helps in daily life and builds practical skills for managing homes and families effectively.