Answer:
B
Explanation:
Samuel's is the correct way to show the possessive.
I would never have thought of D. It looks like it hints an a group of Samuels, but I'm not sure. It certainly is not possessive.
C: is incorrect. Uncle Samuel is possessive. It is not a simple plural in the given sentence. You need an apostrophe.
A is not correct. That, if it is at all correct, is a group possessive. The intent is one Samuel, and he possesses something. B is the only one that works.
