Visual elements could be any sort of illustration or photographs or diagrams. These can all set the tone of the writing.
The correct answer is C. After two such nights, he must be so tired as to be able to sleep anywhere.
Explanation:
The sentence "After two such nights must be so tired as to be able to sleep anywhere" is a fragment because this sentence contains a predicate "must be so tired..." but does not contain a subject, which is an essential element in a complete sentence. In this context, to correct this sentence and make it a complete sentence it is necessary to add a subject such as "he". This correction is shown by option C that specifies who is the agent of the action.
The second sentence, the author seems to be trying to inform or warn readers about extreme climate changes and then increasing .
Answer:
maybe because hes paranoid