Answer: the answer is d) sad.
Explanation: it is a feeling on pensive sadness.
Answer:
A, B
Explanation:
While C and D are also important factors in giving a speech, they do not specifically help create a friendly and comfortable tone.
Answer:
"It is important for a person to be prepared before you adopt a pet"? Not sure if this is a spelling question or a grammar question with typos. If it was a grammatical one I would replace "you" with "they".