The pronoun in the sentence is 'they'.
This pronoun repleaces the words 'dogs and cats'.
1. A
The wording of the phrasing is rude and sounds ungrateful and will likely start a fight, sending the situation backwards in a direction not intended or wanted.
2. C
Getting into a habit makes it easier to keep doing things and will create a time set aside for it. Other options would create problems such as failing or slipping grades from not paying attention in class or not going it sleep deprivation.
3. B
This would separate her "new identity" from her husband, and be the opposite of what Heather wants to do. If she wants to get him more involved, she should include him in that aspect of her life by doing the other things listed as answers.
Hard or difficult would be good synonyms for arduous.
Hope that helps.
The anwser is A: That like Polybus, the prophecy is dead and buried.
By saying that the prophetic oracles were worthless, the speaker demonstrates his complete dislike and disregard for them. And to emphasize his opinion, he adds that Polybus has taken them to Hades (in older Greek mhyts this the abode of the dead,where all mortals go when they die), which is a place where he already is.
