The answer to this question will be A. Hypothesis
Answer:
The author uses precise numbers implying he has done his research and knows what he is saying, and his use of vocabulary suggests he is educated on the subject and knows what he is talking about.
Explanation:
The first option is correct.
When will you be able to meet for lunch, Grandpa Henry?
1:b
2:d
3:Oooo I can't answer this one without context
4:b
D. This is an actual real problem going on in this world today