Economists generally argue that: A. costs of moderate inflation are nearly zero whereas high inflation is quite costly.
B. high inflation is costly, but costs of moderate inflation are not nearly as large as the public believes.
C. costs of both high and moderate inflation are quite large.
D. neither high inflation nor moderate inflation is very costly.

A. costs of moderate inflation are nearly zero whereas high inflation is quite costly.

Explanation:

Economists generally believe that moderate inflation is actually good for the economy as prices need to increase in a healthy manner overtime in order to drive consumption. This means that to them, the cost of moderate inflation is nearly zero.

This is a sharp contrast to high inflation which most economists generally believe to be costly as it reduces the savings of people as well as their real wages and welfare.

answer; correct answer is investing activity;

the correct answer option is b. a single paragraph.

explanation:

when you are thinking about paragraph​ topics, you should always choose a subject that can be adequately addressed in a single paragraph.

a paragraph is a piece of writing consisting of a few sentences that deal with a single theme. it has only a single idea that the paragraph revolves around and talks about.

so a paragraph topic must be chosen wisely where a single idea can be communicated in a single paragraph.