The colour code for a live wire is

The color code for a live wire can be either red or black, depending on the country and the type of electrical circuit ¹ ². In the United States and Canada, a black wire is used for hot wires that carry current, while red wires are used for the second hot wire in 240-volt installations.

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.