Answer:
They bought concert tickets for me and themselves.
Explanation:
The sentence which uses a reflexive pronoun correctly is the first one which states: "They bought concert tickets for me and themselves."
The simple rule with reflexive pronouns is as follows:
Where the object and the subject of a verb are the same, you may use a reflexive pronoun, if not, do not use it. Notice that the primary subject in option A is "They". The reflexive version of "they" in this context is Themselves.
A simpler example is: They bought themselves concert tickets.
The correct answer is A.
See the link below for more about reflexive pronouns:
https://brainly.com/question/6462027