Respuesta :
The correct answer is
“Voy a repetírtelo.” Mensaje is a masculine word, therefore it doesn’t make sense to say, te la voy a repetir... and the last one is just nonsensical.
“Voy a repetírtelo.” Mensaje is a masculine word, therefore it doesn’t make sense to say, te la voy a repetir... and the last one is just nonsensical.