Lewin's research concerning both how to promote economical and nutritious eating habits, and what kinds of leaders elicit the best work from group members, was important in establishing the idea that
a. different topics require different research strategies.
b. early theories in social psychology were often historically and culturally limited
c. social psychology could be used to understand and help solve practical problems
d. social psychologists may unwittingly influence the behavior of research participants.

The correct option is C: social psychology could be used to understand and help solve practical problems

Explanation:

Lewin was dedicated to researches that aimed to prove that it was possible to study complex social processes scientifically. Thus, he began researches to test various social psychological hypothesis scientifically. He wanted to prove that it is possible to use social psychology in solving practical problems. In this light he conducted a research on how to promote economical and nutritious eating habits, and what kinds of leaders elicit the best work from group members.

C

Explanation:

Lewin's research concerning both how to promote economical and nutritious eating habits, and what kinds of leaders elicit the best work from group members, was important in establishing the idea that social psychology could be used to understand and help solve practical problems.

Lewin is often recognized as the founder of social psychology and was one of the first to study group dynamics and organizational development.

so you know what happened be fore you were alive

explanation:

levels of production can be increased by technology while holding labor and capital constant, because increased technology makes the production process more efficient. subsequently, the lras curve is almost a vertical line, that can shift to the right, with an increase in technology.

the relationship between the lras curve and the ppc is that both can make the economy could grow. the ppc achieves that when it shifts outward because of more resources or technological advances while the lras curve shifts if more resources are developed or if there are technological advances.

the lras curve is a vertical line at an output level that represents the number of goods and services a nation can produce over a sustained period using all of its productive resources as efficiently as possible with all of the current technology available to it.

the production possibilities frontier (ppf) is a graphical device that is used for economic analysis of production decisions because the ppf measures the maximum possible combinations of two goods that an economy is capable of producing with its currently available resources and technology.