Answer: Addy guessed her friends' response without any clues.
Explanation: Normally when you cannot guess a correct answer, u ask for clues.
The phrase in this sentence is Nonrestrictive because there can only be one youngest brother, therefor the name Julian does not need to be in the sentence, because it is unnecessary to name him.
Hope this helps! :)
a sentence containing a subordinate clause or clauses or you can also say its a complex sentence contains an independent clause and at least one dependent clause.