Three statements are given followed by two conclusions numbered I and II. You have to take the statements to be true, even if they seem to be at variance with commonly known facts and decide which of the conclusions logically follow(s) from the statements. 

Statements:

Some Waters are Stagnant.

Some Waters are Rivers.

All Stagnant are Mosquitoes

Concussions:

(I) Some Waters are Mosquitoes.

(II) Some Rivers are Stagnant.