Afalse premise is best defined as
a. "the contradiction between what is said and what is really meant"
b. "a description of something as being smaller or less than it really is"
c. "the use of humor to emphasize the negative qualities of society"
d. "an incorrect assumption that forms the basis of an arguement"

Correct answer here is D: an incorrect assumption that forms the basis of an argument.

Explanation:

The reason for this comes from the definition of what a false premise is. Basically, a false premise is an assumption, or an idea, that may be wrong, or is false, and leads to a conclusion that may also be wrong, but that is not illogical. This means that, because the premise, the main assumption, is wrong, my conclusion to it may also be wrong, but this doesn´t mean that both the premise, and/or the conclusion, are illogical or impossible. For example, when we say: It is a nice day, because the sun is shinning. Because the sun is shinning is the premise, or assumption, that leads to the conclusion that the day is nice. These two are logical, but it doesn´t mean that the day is nice BECAUSE of the sun shinning. There may be other truer reasons for the day to be nice, other than the sun shinning, which may lead to the  conclusion being wrong as well. This is why the correct answer is D.

no one should discriminated against because he or she is not from a minority group