If Owen planted lilac shrubs in the full sun, then his garden will be accentuated with gorgeouspurple flowers. Owen did not plant lilac shrubs in the full sun. Thus, his garden will not be accentuated with gorgeous purple flowers.
What is the logical form of the argument?
a. Affirming the consequent
b. Denying the antecedent
c. Modus ponens
d. Modus tollens
e. Hypothetical syllogism