Answer:
Vanished is suspenseful because when the mom was going into the camping ground owners cabin she was worried he'd find her.
Explanation:
The correct answer is option two.
An infinitive phrase consists of an infinitive verb, and can be followed by a complement or a modifier, which is usually an adverb.
In the sentence above, the infinitive phrase comes before a complement "variety and interest to their writing."
Answer: D because one can argue that there are serious dangers to carbon-dioxide.