Answer:
a. concerned with developing theories and interested in solving problems.
Step-by-step explanation:
The term economists refer to the person who studies, theorizes, analyzes, and develops concepts in the discipline of economics. Economists have the excellence and work in the field of academia, in the government sector and private sectors. They are experts whose opinions and researches help in the building up of the policies related to the economic terms of the market. They theorize the concepts and researchers on the market trends to help in the growth of the economy respectively.