Person A: Thank you for taking care of my dog when I’m away. ______________. Person B: You’re welcome.121/300Mark the letter A, B, C or D on your answer sheet to indicate the sentence that best completes each of the following exchanges. Person A: Thank you for taking care of my dog when I’m away. ______________. Person B: You’re welcome.Help yourselfI really appreciate your helpYour help is always welcomeYou can’t help itGiải thíchChọn B