The correct answer is (a) 1 month.
Under Section 105 of the Code of Civil Procedure, 1908, the period of detention in civil imprisonment as a consequence of disobedience or breach of any injunction, shall not exceed one month.
An injunction is a court order that requires a person to do something or to refrain from doing something. If a person disobeys an injunction, they may be held in contempt of court and sentenced to civil imprisonment.
The purpose of civil imprisonment is to compel compliance with an injunction, not to punish the person who disobeyed it. The maximum period of detention is one month, and the court may order a shorter period of detention if it is satisfied that the purpose of the injunction has been served.
The other options are incorrect because they are longer than the maximum period of detention allowed under the law.