ok, i'm gonna try to do the steps on this question. i'm not sure if i totally understand the question but i'll try.

1. "¿Quién ese muchacho?" "Es _____ muchacho que está en el club de artes marciales, ¿no?
(look at the question)
2. "Who is that boy? "He is the _____ boy that is in the martial arts club, right?"
(translate it into English)
3. he is the same boy?
(answer the question in English first)
4. el mismo
(now try the answer)

a. el miembro
b. el club
c. el equipo
d. el mismo

hope this is correct, because i tried :)

Excellent job!

Sra

thanks you so much

Great effort! Let's go through the steps to see if your answer is correct:

1. "¿Quién ese muchacho?" means "Who is that boy?".
2. You correctly translated the sentence into English: "He is the _____ boy that is in the martial arts club, right?"
3. The question is asking if the boy mentioned is the same boy.
4. You chose option "d. el mismo" which means "the same" in English.

Based on your steps, it seems that your answer of "d. el mismo" is correct! Well done!