Answer:
Option B==> to answer questions and analyze issues.
Explanation:
Models in economics can be likened to an assessment used in the determination or analysis of economic situations. It is this models in economics that are being used to find the roots of these problems and it is also used to solve the problems too.
Economists is the term for people studying economics and its principles. And one of the instruments for studying and explaining economics is the use of models. The models are being used by economists to ANSWER QUESTIONS AND ANALYZE PROBLEMS.
I’m sorry what? i don’t understand
I studied it in 3rd standard so I don't remember much. As much as I can remember CPU means Computer Programming Unit. Computer doesn't have a full form it is a simple word that means something that computes or calculates.