Trying to explain the different ways of proving your ideas.

Exam Question: Alice asserts: "all boys are jerks, John is a boy, therefore John is a jerk".

 Alice's hypothesis is:
A) True by deductive logic
B) Proven true by inductive experience with boys
C) Self evidently true
D) True by Alice's fiat
E) True because "all boys are jerks" is a universal law of nature.