Which verb form correctly completes this conversation?

juan: ¿qué prefieres que ellos preparen hoy, jugo de piña o de naranja?
alex: yo prefiero que jugo de piña.

preparan
preparas
preparen
prepares

Julio trabajó como periodista durante mucho tiempo; muy famoso. a. era b. eran c. es d. éramos

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.

Ser/ir: past tense in this group. both verbs have the conjugation.