Explanation:

- Section 107 of the Code of Criminal Procedure deals with the preventive measures by an Executive Magistrate to ensure peace.

- The Magistrate can require individuals, who are likely to disturb the peace, to execute a bond for maintaining peace.

- Option 1: One year – An Executive Magistrate can require someone to execute a bond for a maximum of one year.

- Option 2: Two years – Not applicable; the maximum period is one year.

- Option 3: Three years – This exceeds the allowed period under Section 107.

- Option 4: Six months – This is valid but not the maximum allowed period.

Correct Answer: Option 1: One year