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:

All girls are smart

All smart are intelligent 

Conclusions:

I. All girls are intelligent

II. Some girls are not intelligent

Only Conclusion I follows

Based on the statements, a possible Venn diagram is - 

Thus, Conclusion I is definitely true and II is false because the circle of girls is contained in the circle of intelligent.