Correct option is C
Statements:
1) Some cups are books.
2) Some books are shirts.
From the given statements Venn diagram will be:

Conclusions:
I. Some cups are shirts. (Not follow, because there is no any direct realtion is given between cup and shirt.)
II. All shirts are books. (Not follow, because there is Some books are shirts.)
Therefore, neither conclusion I nor II follows.
Thus, correct option is (c).