Previous economists such as John Maynard Keynes and Milton Friedman believed it was important to monitor and control economic fluctuations. Which statement about modern macroeconomists is true?

Modern macroeconomists believe that the business cycle model is no longer valid for today's complex economy.

B.
Modern macroeconomists continue to study the business cycle in an attempt to prevent recessions and make the economy more stable.

C.
Modern macroeconomists have mastered the complexities of the business cycle and can now prevent recessions in the national economy.

D.
Modern macroeconomists agree that the business cycle is impossible to regulate and are seeking better methods of preventing recessions.

to plan an idea out before

uses : -

1.aneroid barometers primarily measure whether pressure is rising or falling.

2.aneroid barometers are often used for reading pressure in homes and recreational boats.  

3.other uses may include barographs in meteorology and altimeters in modern aircraft.  

4.this type of barometer can announce whether a high or low pressure system is coming or whether it is becoming more intense.  

5.there are different types of aneroid barometers, such as the altimeter, which measures altitude, or distance above sea level.  

6.another example is a barograph, which is a modified aneroid barometer that provides constant readings of atmospheric pressure on graph paper.  

7.when used in this capacity, the aneroid barometer can store a week's worth of data.

android diameter a device for measuring atmospheric pressure , often specially calibrated for use as an altimeter ,consisting of a box or chamber partially exhaused of air, having an elastic top and a pointer to indicate the degree of compression of the top caused by the external air

refer to the attachment for the characteristics : -

answer; negative punishment;

what are the statements