Statements: Some boys are rude. Some rude are human.
All human are good.
Conclusions: I. All humans being boys is a possibility.
II. At least some rude are good.
III. Some good are not boys.
ans is none of these but acc to me 2 should be correct :-/
Yes you are correct, II is right. Also, based on the premises we cannot draw any conclusive relation between 'humans' and 'boys'. Whenever no relation is clear, all relations are a possibility. Hence I is also correct. Ans should be both I & II. You can also refer the following link for conceptual clarity on this chapter: https://analyticalandlogicalreasoningconcept.blogspot.in/2017/01/deductions-syllogism.html