Maryland, even though a southern state, remained loyalty to The Union during7/50Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions. Maryland, even though a southern state, remained loyalty to The Union during the Civil War.even thoughremainedloyaltyduringGiải thíchĐáp án C “loyalty” → “loyal” Ở đây ta cần một tính từ ở phía sau remain