Final answer:
The text excerpts provided do not contain information about Mrs. Song to make a supported inference about her character or motives.
Step-by-step explanation:
The question asks which inference about Mrs. Song is best supported by the text provided. However, none of the excerpts provided actually mention a character named Mrs. Song.
Without specific information on Mrs. Song, her feelings about her husband's arrest, or her loyalty to the North Korean government, it is impossible to make an accurate inference about her. Nonetheless, the passages do discuss themes of familial loyalty, rebellion, and the consequences of challenging social norms. These themes can be linked to options that talk about loyalty or rebellion but without explicit information about Mrs. Song, no valid inference can be drawn.