In this question, three statements are given, followed by three conclusions numbered I, II and III. Assuming the statements to be true, even if they seem to be at variance with commonly known facts, decide which of the conclusions logically follows/follow from the statements.
Statements :
I. Some roses are yellow.
II. Some yellow are buses.
III. All buses are green.
Conclusions :
I. All yellow are roses.
II. Some buses are yellow.
III. All yellow are green.

Correct option is C

​Conclusions :
I. All yellow are roses. (False, as per the diagram.) 
II. Some buses are yellow. (True, as per the diagram.)
III. All yellow are green. (False, as per the diagram.)

Correct answer is only conclusion II follows.