She bought the flowers . . . . . . . . herself. A. for B. on C. in D. at

The correct answer is A. for.

The word “for” is used to indicate the purpose of an action. In this case, the woman bought the flowers for herself.

The other options are incorrect because they do not make sense in the context of the sentence.

• The word “on” is used to indicate a location or position. In this case, the woman did not buy the flowers on herself.
• The word “in” is used to indicate a location or position inside something. In this case, the woman did not buy the flowers in herself.
• The word “at” is used to indicate a time or place. In this case, the woman did not buy the flowers at herself.