Concept:Economics is considered a science because it follows a systematic method to study and explain human economic behaviour.
Explanation:Science involves observing facts, testing ideas, and forming general laws or theories.
Economics uses the scientific method to collect data, analyse economic problems, and build theories.
These theories help explain the behaviour of individuals, groups, and organisations when dealing with scarce resources.
However, economics does not rely mainly on controlled experiments or machines to study human behaviour.
Instead, it applies scientific reasoning and observation to real-world economic activities.
Therefore, the best reason is that economics uses scientific method to explain human behaviour.
Answer:B. uses scientific method to explain human behaviour.