Explanation:

- The Probation of Offenders Ordinance was an important legal reform in Pakistan, aimed at providing alternatives to imprisonment for certain offenders.

- Option 1: 1st November, 1960 – This is the correct date on which the Ordinance was promulgated.

- Option 2: 1st December, 1960 – This date is incorrect; the law was already in force by then.

- Option 3: 1st January, 1961 – Also incorrect; the ordinance was in place before this date.

- Option 4: None of above – This is not correct since option 1 is accurate.

Correct Answer:

Option 1 - 1st November, 1960