As his classmates teased him about his new glasses, his heart was a stone. which poetic device is used here?

The poetic device that is used is a metaphor. Because his heart was stone. Hope that helps!

metaphor is the answer in apex

"a" because he is appealing to logic as oppose to appealing to the audience's emotions.

one thousand and one nights, also known as arabian nights is a collection of stories whose basic structure is that of embedded narrative. this technique refers to a main story which works as the common frame - or framing narrative - for the other stories, and then this series of stories which are connected to the main one. this technique can also be referred to as a story within a story. the stories stem from the original tale, some begin and end on their own, some are connected to the previous or following one, by means of questions that are answered in the subsequent tale, or characters which reappear.