Correct option is D
Statements:
Some guns are roses.
All roses are bats.
According to the given statement, Venn diagram will be:

Let's analyse the conclusions:
(I) Some guns are bats. → True
Since, some guns are roses and all roses are bats therefore some guns are bats is true.
(II) All bats are roses. → False
Since, all roses are bats so all bats are roses can not possible.
Thus, the correct option is (D) Only conclusion (I) follows.