No individuals truly concerned with the plight of suffering humanity are people motivated by self-interest. All television evangelists are people motivated by self-interest. Therefore, some television evangelists are not individuals truly concerned with the plight of suffering humanity.

valid.

Explanation:

Valid is something effective, legally binding or able to withstand objection.

In deductive reasoning, an argument is valid if and only if it takes a form that makes it impossible for the premises to be true and the conclusion nevertheless to be false. It is not required for a valid argument to have premises that are actually true, but to have premises that, if they were true, would guarantee the truth of the argument's conclusion. Valid arguments must be clearly expressed by means of sentences called well-formed formulas. The validity of an argument can be tested, proved or disproved, and depends on its logical form.

An argument is a set of statements expressing the premises and an evidence-based conclusion.