What does Adam's mother attribute his behaviour to

A) Observational learning
B) Reciprocal determinism
C) Operant conditioning
D) Incongruence

Can an invalid argument have a true conclusion?

A) No, because then it would be valid.
B) No, because conclusions are never true or false.
C) Yes, because invalid arguments can have true or false conclusions.
D) Yes, because invalid arguments always have true conclusions.
E) Yes, but only if there are more than two premises.