Answer:
The validity of data, claims, hypotheses, and observations.
Explanation:
Making an argument and discussion over the scientific arguments are considered important to the scientific method.
The argument should be made in a way that it should check the validity of the hypothesis. The scientist who has to make an argument should consider various steps of scientific method like hypothesis which should predict the explanation of the natural phenomenon.
The person should consider the validity of the data whether it supports the hypothesis or not and observation of the experiment.
Thus, the selected option is the correct answer.
The brain is a part of the central nervous system together with the spinal chord.
The other part of the nervous system is the peripheral nervous system which is consisted of nerves and ganglions.
Humans own their ability of speech to the three areas in the brain.
Broca's area is essential for forming words, Wernicke's area helps us understand the meaning of words and the arcuate fasciculus connects these two areas and gives speech coherence.
2 - Human refuse to stop polluting.
All other three are attempting to attack the problem of pollution.
Anything can come out of that but I think type b might be more possible to happen.