Fact-based management includes four key ideas. Which of the following is among the key ideas associated with fact-based management?
a. routine use of interrogations
b. reliance on historical research
c. understanding variation
d. use of analogous estimating"

The need to understand variation

Explanation:

Managing variation is an important aspect of quality improvement. The quality improvement is most important in the perspective of variation. There are two types of variation are there such as the common cause variation and the specific cause variation.

The common cause variation is called the random cause variation. It is also present in stable healthcare processes. The specific cause variation is not the internal cause of the variation. The approach of managing of variation depends on the priorities and the perspective of the leader.

d is the correct answer.

b is incorrect because it makes food by itself

c is incorrect because us humans don't know how to produce their own food using the sun like plants.

a is incorrect because consumers can depend on carnivores for eating food for consumers to eat the dead organism. same thing with omnivores.