Question

For the play, Mario wore the magician costume, a long purple robe.

Identify the phrase in bold.

A.) Infinitive Phrase
B.) Appositive Phrase
C.) Adverb Phrase
D.) Adjective Phrase

Answer 1

B. Appositive phrase 
This is the answer because it remain the object
a costume, in this sentence, is the same thing as a long purple robe. 
hope this helped!

Answer 2

Appositive phrase is the answer