Desafortunadamente, el museo de arte precolombino está cerrado todo el día.
Translation
Unfortunately, the pre-Columbian art museum is closed all day.
The verb "close" (infinitive) conjugated in the past participle is used. This tense has different uses. In this case it forms passive sentences. There is agreement between past participle and patient subject. There is also agreement between subject and being followed by past participle. These sentences make passive sense.
I believe the answer is b. Tomas can decorate 16 gifts with 2 rolls of ribbon because you divide 34 into 2 and you get 17. and since you want to use all of the ribbon the best choice is 16 gifts. Btw plz don't report me if i get this wrong.
