In each of the questions below, two statements are given followed by two conclusions numbered I and II. You have to take the two statements to be true even if they seem to be at variance from the commonly known facts and then decide which of the given conclusions logically follows from the given statements disregarding the commonly known facts.

Give answer a: if only conclusion I follows
Give answer b: if only conclusion Il follows
Give answer c: if either I or II follows
Give answer d: if neither I nor II follows
Give answer e: if both I and II follow