Concept:The phrase “a shadow of one’s former self” means someone has lost the strength, power, or ability they once had.Explanation:The expression is used when a person has become much weaker than before.It does not suggest that the person is hopeless or vulnerable in a general sense.It also does not mean the person has almost recovered.The idea of being weak matches the word “frail” most closely.Answer:A. is now frail.