Q. The mother was anxious . . . . . . . . the safety of her son.
✅ Correct Answer: (B)
about
Explanation: Normally, 'anxious about' and 'anxious at' are used to express concern. 'Anxious about' refers to the subject of worry, and 'anxious at' refers to the cause of worry.
Explanation by: Team MCQ Buddy
Normally, 'anxious about' and 'anxious at' are used to express concern. 'Anxious about' refers to the subject of worry, and 'anxious at' refers to the cause of worry.