jelaskan situasi dan keadaan apa yang melatarbelakangi munculnya ilmu ekonomi? jelas kan 3 (tiga) konsep ekonomi berikut, yakni: kelangkaan, pilihan dan biaya alternatif

Unclear question. However, here's the clear rendering;

"Explain the situation and the circumstances behind the emergence of economics? it is clear 3 (three) economic concepts below, namely: scarcity, choice and alternative costs".

Explanation:

Remember, the widely accepted definition of economist is that of Lionel Robbins. Noteworthy in his definition is that scarcity creates a need to decide how best to manage resources.

Scarcity: the lack of needed resources.

Choice: the decision or action taken to satisfy our wants.

Alternative cost: are other cost options available to choose from.