What is the maximum permissible tolerance for length and width respectively?

• A. ¬¨¬®¬¨¬± 3mm and ¬¨¬®¬¨¬± 6mm
• B. ¬¨¬®¬¨¬± 6mm and ¬¨¬®¬¨¬± 3mm
• C. ¬¨¬®¬¨¬± 3cm and ¬¨¬®¬¨¬± 6cm
• D. ¬¨¬®¬¨¬± 6cm and ¬¨¬®¬¨¬± 3cm