What are the types of the underlined clauses in the sentence?
La Toya, who is the sister of a famous singer, refused to interact with the media because she was not dressed in her best clothes.
Relative clause, Adverb clause
The clause ‘who is the sister of a famous singer’ is a relative clause because it tells us more about the noun ‘La Toya’.
The clause ‘because she was not dressed in her best clothes’ is an adverb clause because it tells us ‘Why’ she refused to interact with the media.