The correct answer is: B. scarce
The word “economic” means relating to or concerned with the production, use, and management of money, goods, and services. It is derived from the Greek word “oikonomia”, which means “management of a household”.
The word “extravagant” means spending or using money or resources in an extravagant or wasteful way. It is derived from the Latin word “extravagare”, which means “to wander beyond bounds”.
The word “scarce” means not plentiful or abundant; in short supply. It is derived from the Latin word “carus”, which means “dear” or “expensive”.
The word “unlimited” means not limited or restricted in scope or extent. It is derived from the Latin word “limitare”, which means “to set a limit to”.
Of the above options, the word “scarce” is most closely connected with the word “economic”. This is because economics is the study of how scarce resources are allocated.