Answer:
The choice which shows the correct use of a hyphen or hyphens is the following one:
B. My great-uncle Pat lives in Vancouver.
Explanation:
"Great-uncle" is a compound noun. Compound nouns are those nouns which require more than one noun to be put together so a specific meaning can be fully expressed. The nouns that are put together become a compound noun. "Great-uncle" is one of those compound nouns which must have their nouns separated by a hyphen, such as mother-in-law and great-grandfather.
