In the following question below are given some statements followed by some conclusions based on those statements. taking the given statements to be true even if they seem to be at variance from commonly known facts. Read all the conclusions and then decide which of the given conclusion logically follows the given statements.

Statements:

I. No rat is cow.

II. Some animal are rat.

Conclusions:

I. Some animal are cow.

II. Some cow are not rat.

III. All rat are animal.

Only conclusion II follows

A possible Venn diagram based on the statements is- 

1. Relation between animal and cow is not specific, thus conclusion I does not allows follow.

2. Some cow not being rat is definitely true.

3. All rat being animal is not 100% established. 

Thus, only conclusion II follows.