Which best describes what occurs in the product market? the exchange of labor for capital
the exchange of goods and services for factors of production
the exchange of goods and services for money
the exchange of money for factors of production

The exchange of goods and services for money

Explanation:

do you need me to give you a explanation?

Charge of goods

Explanation:

this null effect is caused by a weak manipulation and ineffective internal validity. in a scientific study, as the one dr. morimoto is trying to perfom, internal validity refers to the confidence placed in the cause-effect relationship and to how well an experiment is done and able to eliminate confounding variables.