The correct answer is: C. Either I or II follows
The statement says that the employees union of the Municipal Corporation has decided to strike work for indefinite period in protest against the management’s refusal to grant bonus. This means that the employees are not happy with the management’s decision and are willing to go on strike to get what they want.
Course of action I says that the government should immediately pay ex-gratia grant to the Municipal Corporation to grant bonus to its employees. This would be a way to resolve the issue and prevent the strike from happening. However, it is not clear whether the government is willing or able to do this.
Course of action II says that the striking employees should be persuaded to defer the strike notice. This would be a way to buy some time and try to find a solution to the issue. However, it is not clear whether the employees would be willing to do this.
Therefore, either course of action I or course of action II could follow, depending on the circumstances.