Why is red light associated with sex?

Which excerpt from the awakening best highlights the elation edna feels when she thinks of robert? the morning was full of sunlight and hope. edna could see before her no denial—only the promise of excessive joy. she lay in bed awake, with bright eyes full of speculation. “he loves you, poor fool.” he would come to her in the afternoon or evening, sit and roll his cigarette, talk a little, and go away as he had done the night before. but how delicious it would be to have him there with her! robert did not come that day. she was keenly disappointed. he did not come the following day, nor the next. each morning she awoke with hope, and each night she was a prey to despondency. his horses were full of mettle, and even a little unmanageable. she liked the rapid gait at which they spun along, and the quick, sharp sound of the horses' hoofs on the hard road.

How will charlie most likely change after his experience at the diner in part 2 of "flowers for algernon"? he should be kind to each person who crosses his path. he will be more sympathetic to those who are similar to the way he once was. he will attempt to the dishwasher receive the surgery he was given. he will react the same way each time he sees someone being treated unfairly.

Which statement best explains the motivation for the narrator's mother to introduce her daughter to everyone they meet? from amy tan's "rules of the game."