She is frightened . . . . . . . . her life. A. about B. for C. at D. of

The correct answer is D. of.

She is frightened of her life. This means that she is afraid for her life. She may be afraid of something that is happening to her, or she may be afraid of something that might happen to her in the future.

The other options are not correct because they do not convey the same meaning.

• About: She is not afraid about her life. She is not concerned about her life.
• For: She is not afraid for her life. She is not grateful for her life.
• At: She is not afraid at her life. She is not angry at her life.

I hope this helps!