The unpleasant feeling passed and she glanced guardedly up ,at him. He was walking unmarked in moonlight, innocent of her reaction to him. She felt then - this thought had come to her before - that there might be more to him than she had imagined. She felt ashamed she had never thanked him for the help he had given her father.
She glanced at him when

Options

A. He walked alone and unnoticed in moonlight
B. She was sure that she was not being noticed
C. Her reactions did not have any effect on him
D. The unpleasant feeling passed