Answer:
A. After Friend
Step-by-step explanation:
The correct place for the comma in this sentence is after "friend." The phrase "My friend Alicia" is an appositive, which means it renames or explains the noun "friend." In this case, it provides more information about the specific friend being referred to. Appositives are usually set off with commas.
Here is the correct punctuation:
My friend, Alicia, has a new computer which is very powerful.