Mark the letter A, B, C, or D to indicate the most suitable response: Susan: “I have18/30Mark the letter A, B, C, or D on your answer sheet to indicate the most suitable response to complete each of the following exchanges. Susan: “I have lost my purse.” - Her friend: “___________.”It’s carelessOh, what a pityThat’s nothingOh, be carefulGiải thíchĐáp án B.