In a 2009 study, presented by the national academy of science, 97% of climate scientists agree that human activity is causing global warming." which of the following statements is best supported by this study?
a. most climate scientists dispute the theory of human influence on global warming.
b. global warming is most likely alarmist propaganda based on false data.
d. most climate scientists believe that there is evidence that explains global warming.

Let's look at the statements one-by one:

a. Most climate scientists dispute the theory of human influence on global warming.

-this is not true, 97%, that is majority agree with it, not dispute it

b. Global warming is most likely alarmist propaganda based on false data.
-this is not true - scientists support this idea.

d. Most climate scientists believe that there is evidence that explains global warming.
-this is the correct answer! "Most" here is specifically 97%- almost all of them.