What is "they are" in the form of ser in spanish

In this morning’s paper maría saw an advertisement for a store that has just opened in santiago. according to the list below which one of the following items would maría not expect to find at this store? maternity clothingmen's pantsbeauty productsdresses

Read and choose the option with the correct word or words to complete the sentence. es una celebración de dos personas < <   people> > que quieren < <   who want  > > una familia.  la boda  la quinceañera  el año nuevo  el fin de año

Which verb form correctly completes this sentence? tenemos un mes para preparar porque la exhibición el 28 de octubre. a. abramos b. abriremos c. abrirá d. abras