Answer:
c. This argument contains a formal fallacy.
Step-by-step explanation:
A formal fallacy is when an argument contains an incoherent premise and conclusion. This means that the premise or ground of the argument and its conclusion do not go hand in hand.
In the given argument, the statement that "there will be fewer greenhouse gasses" will result in the production of cleaner cars. This argument contains a formal fallacy because the claim and the conclusion do not add up.
Thus, the correct answer is option c.