Answer:
A - diction is what helps people to understand what you're saying. Its the full pernunciation of vowels.
Nominative case pronoun would be a pronoun in its basic form, so: I, you, he, she, it, we, you, they...
So, the correct answer is A, 'I' is a nominative case pronoun, whereas the other examples only have objective case pronouns: them, him, her.
The answer is C. live in, as the paragraph states where they come. In the first sentence, the phrase "live in" is located, indicating that the main topic is the location of the birds.
