Read the following sentences from "In the Shadow of War" He sat on the windowsill and waited for the woman. The last time he saw her, she had glided past with agitated flutters of her yellow smock. The children stopped what they were doing and stared at her. They had said that she had no shadow. They had said that her feet never touched the ground. As she went past, the children began throwing things at her. She didn't flinch, didn't quicken her pace, and didn't look back.

Which pair of words best describes the woman in the yellow smock?

A. timid and resolute
B. fearful and guarded
C. secretive and reliable
D. mystifying and unwavering