Final answer:
Larry is the fifth son. The other sons are named One, Two, Three, and Four, and the question itself indicates that Larry's father has five sons.
Step-by-step explanation:
The question asks about the name of the fifth son in a sequence given by Larry's father. According to the question, Larry's father has five sons named One, Two, Three, Four, and the name of the fifth son is not explicitly given. However, the key information is provided in the question itself, which states 'Larry's father has five sons.' This sentence implicitly provides the name of the fifth son, which is Larry. So the correct answer is C) Larry.