Question

HELP PLEASE
Which statement is the Law of Syllogism?
A)If p q is a true statement and p is true, then q is true.
B)If p q is a true statment and q is true, then p is true.
C)If p q and q r are true statments, then p r is a true statement.
D)If p q and q r are true statements, then r p is a true statement.