In given questions, three statements are given followed by four conclusions numbered I,II,III and IV. You have to take the given statements to be true even if they seem to be at variance with commonly known facts and then decide which of the given conclusions logically follows from the given statements disregarding commonly known facts.
Statements: All oceans are rivers. All wells are springs
Conclusions: I. Some springs are oceans.
II. Some wells are rivers.
III. Some rivers are oceans.
IV. No well is river.
(a) None follows
(b) Only either I or III and IV follows
(c) Only either II or IV and III follows
(d) All follows
(e) Only either II or IV, and I follows.

Explanation

(c)Only either II or IV and III follows