Norcross gives the following argument:
p1: if it's wrong for fred to torture and brutally kill puppies, then it's wrong to support factory farming.
p2: it's wrong for fred to torture and brutally kill puppies.
c: therefore, it's wrong to support factory farming.
this argument is
a. valid, because it has the form of modus tollens
b. invalid, because it has a false premise
c. invalid, because it has a false conclusion
d. valid, because it has the form of modus ponens

D. valid, because it has the form of modus ponens.

Explanation:

This argument is valid because it has the form of modus ponens. This argument in propositional logic has the form of modus ponens. There are two premises in this argument P1 and P2. P implies Q. P is asserted, therefore Q must follow. This argument is valid. If the first two propositions are accepted, then the conclusion follows. But we cannot tell whether the propositions or the conclusion are true or false.

a photo collage of women at work during world war 2