Which of the Following Arguments Commits the Post Hoc Fallacy

Which of the following arguments commits the post hoc fallacy?

A) Ernie never eats meat when he visits, so he must be a vegetarian.
B) I wore my red sweater when I did well on the exam, so my sweater must have made me do well.
C) All syrups are high in sugar, and maple syrup is a syrup.So maple syrup is high in sugar.
D) Lemons are a citrus fruit, and also sour.So all citrus fruits must be sour.
E) Driving is a lot like sitting on a couch, so driving probably doesn't burn many calories.