In the question two statements are given, followed by two conclusions, I and II. You have to consider the statements to be true even if it seems to be at variance from commonly known facts. You have to decide which of the given conclusions, if any, follows from the given statements.
Statement 1: Some wood is furniture.
Statement 2: Some Furniture is iron.
Conclusion I: All furniture is Wood.
Conclusion II: All wood is Iron.

​Statement 1: Some wood is furniture.
​Statement 2: Some Furniture is iron.
From the given statements Venn diagram will be: 

​Conclusion I: All furniture is Wood. (Not follow, because Some wood is furniture. )
​Conclusion II: All wood is Iron. ((Not follow, because no relation between wood and iron)

So, Neither I nor II follows.

Thus, correct option is (d).