1) LAMENT → the letter L is not present in PERMANENT, so it can’t be formed. 2) AMEND → the letter D is not present in PERMANENT, so it can’t be formed. 3) DAINTY → the letter D, I and Y is not present in PERMANENT, so it can’t be formed. 4) AMPERE → it can be formed. Hence, AMPERE can be formed from the letters used in PERMANENT