Read the following context and choose the best option to answer the question.
Context: When it wore off and she woke in the middle of that night - Tyrion was awake and reading - he slept poorly , Sansa knew that . " Poor Margaery , " she said softly almost to herself , but her lord husbands hearing was sharp . " You do n't envy her ? "
Question: How does Tyrion know that Sansa Does n't envy Marjaery ?
Options: 
A. She is not postponing her own wedding .
B. She seems rueful and sad about Marjaery .
C. She is wearing her red crown .
D. None of the above choices .


B