¿en que trabajaban los hermanos en el cuento de casa tomada?

Ineed with spanish because i suck at it. is this right?

Which pair of features is relevant when buying a pc? a. memoria ram y servicio de mensajes escritos b. tiempo de duración del contrato y memoria del disco duro c. memoria ram y precio d. ancho de banda y memoria ram

When describing nouns in english, the noun being described comes second. what is the proper format in spanish? the noun being described comes first followed by the describing noun. the describing noun comes first followed by de (of) and the noun being described. the noun being described comes first and is followed by de (of) and the describing noun. the describing noun comes first followed by the noun being described.