It would be A.It provides necessary detain to create a strong argument.
The fact that it has a strong lead supports this.
Answer:
Johann Wolfgang von Goethe
Explanation:
Unfortunately, there are no choices given in this item, however, it is important to note that we are given phrases which contain the word,
"you are old grandpa Willian the young man said"
The proper punctuation for this given item should be,
"You are old, Grandpa", William, the young man, said.