Fill in the blank with the correct form of the present perfect or the present perfect subjunctive. Based on what the sentence is expressing

Power going out story i need with a plot and the starting point is you wake up late, the power is out, and yeah. plz try to make it non complex since i have to write it in spanish if you want to go all out it needs to be in the preterit tense also know as past

Which is a rich source of vitamin c?

Las calles estén sucias. a. es recomendable que b. es una vergüenza que c. es preferible que d. es preciso que