The correct answer is C. The dawn chorus of robins
Explanation:
In speeches and texts, the term tone refers to the author has about the subject or theme the author is speaking or writing about, this tone is usually expressed by the choice of words the author makes to refer to a situation or topic. Because of this depending on the author and the topic he or she is addressing the tone is different.
In the excerpt presented which belongs to "Silent Spring" a book written by Rachel Carson that explores the negative effects of the pesticides on the environment, the author aims at explaining the way spring was full of sounds of different birds but those have disappeared leading to a negative spring. Considering the author attitude is negative towards the situation of the silent spring but positive towards the past the phrase with the most positive tone is "the dawn chorus of robins" as this phrase refers to the past in which the spring had a lot of voices including those of the robins, a type of bird, also, this is only phrase depicting a positive aspect rather than the silent spring the author seems as negative.
If the verb in the independent clause is in the present tense, the tense that the verb in the indirect quotation should be is <span>remain in its original tense.
</span>You don't have to shift tenses because it is present in the independent one.
For example:
He says: "I need to wash my hair."
He says that he needs to wash his hair.
You wouldn't say - he says that he needed to wash his hair.
Neil Armstrong was the first man to set his foot on the moon.
The sun rises in the east. (Here the real subject is the noun ‘sun’. The article ‘the’ merely modifies it.)
My sister is a teacher. (Real subject – sister)
Music can heal wounds.
Ranveer and Deepak are friends.
Here the highlighted words are subject.
Thank You!