Which of these statements are correct

I) A balance indicates a 1 kg standard is 972g, 972g, 972g and 972g; the balance is precise but not accurate.

II) A balance indicates a 1 kg standard is
982g, 1018g, 1009g and 991g; the balance is precise but not accurate.

III) A balance indicates a 1 kg standard is 972g, 972g, 972g and 972g; the balance is accurate but not precise.

I) is correct.