Explanation:

- Option 1: 13 years

- Typically, laws do not specify 13 years as a maximum period for imprisonment. This option is generally not correct.

- Option 2: 14 Years

- The Indian Penal Code (IPC) generally stipulates a maximum imprisonment period of 14 years for serious offenses. This is significant and often considered the harshest penalty under the IPC, excluding life imprisonment.

- Correct Answer

- Option 3: 12 Years

- Although some offenses may carry sentences of 12 years, it's not the maximum under standard penal codes.

- Option 4: 10 years

- While 10 years is a common maximum for certain offenses, it's not the absolute maximum period of imprisonment.