The least possible Venn diagram for the given statements is as follows
Conclusions: I. Some Chairs are Benches → True (Some part of the Chair which is Window is Bench then it is possible to be definite. So, it is true). II. Some Trees are Benches → True (Some part of the Bench which is Tree is also a Bench then it is possible to be definite. So, it is true). Hence, Both I and II follow.