The correct answer is: B) Strikes and protests.
A hartal is a general strike or cessation of work in a particular area. It is a common practice in Kerala, India, and is often used as a form of protest or to express dissent. Hartals can be called by trade unions, political parties, or other groups. They can be peaceful or violent, and can cause significant disruption to normal life.
Religious festivals are common in Kerala, but they are not usually accompanied by hartals. Cultural celebrations are also common, but they are not usually associated with political or social protests. Elections are held regularly in Kerala, but they are not usually accompanied by hartals.
Hartals can be a powerful tool for expressing dissent, but they can also be disruptive and harmful. It is important to weigh the costs and benefits of calling a hartal before doing so.