Answer: The correct answer is : B . She wants to seem strong for her granddaughter.
Explanation: The grandmother begins the poem by telling jokes and laughing a lot to hide her tears. The granddaughter does not know why her grandmother cries, but she suffers because of what happened to her daughter and her granddaughter. The grandmother tries to hide her pain by being shy and drinking tea, but in reality the rate does not contain tea but is full of tears.