What is the audio or song, you have to listen to
It is pronounced as the English 'd'. I hope I helped! :)
If something seems temporary, use estar, if it is more permanent quality, use ser. When you are thinking about whether to use ser or estar, consider which question the verb “to be” is answering. If you want to talk about ‘where’ something is, use estar.
Answer:
she's my cousin Blanca. Blanca (sleep) under a tree