Opportunity cost is the value of the next best alternative that must be given up in order to get something else.

Fixing the sentences

Your original text:

“opportunity cost is what must be in order to something else. opportunity cost forces consumers and producers to make .”

A clear, corrected version could be:

  • “Opportunity cost is what must be given up in order to obtain something else.”
  • “Opportunity cost forces consumers and producers to make careful choices about how to use their limited resources.”

What opportunity cost means

  • It is the value of the best alternative you do not choose (money, time, or benefits you could have had).
  • Because resources are scarce, every decision has an opportunity cost, even if no money changes hands.

How it affects consumers and producers

  • Consumers must decide how to spend limited income or time, so buying one good means giving up another.
  • Producers must choose which goods to make with limited labor, capital, and materials, so producing more of one thing means producing less of something else.

Simple classroom-style example

  • If a student spends an evening studying, the opportunity cost might be the fun they give up by not going out with friends.
  • If a factory uses its machines to make phones instead of tablets, the opportunity cost is the profit from the tablets it could have produced.

TL;DR:
Opportunity cost is what must be given up to get something else, and it forces both consumers and producers to make trade-offs with their limited resources.

Information gathered from public forums or data available on the internet and portrayed here.