The correct answer is option 2: 60 days. A member of Parliament will lose his membership if he is continuously absent from sessions for 60 days. This means that if a member of Parliament does not attend any sessions for a period of 60 consecutive days, they will lose their membership. It`s important for members of Parliament to actively participate in sessions and fulfill their duties as elected representatives. Being absent for a prolonged period can be seen as a neglect of their responsibilities and can result in the loss of their membership. It`s worth noting that this rule varies from country to country as parliamentary rules and regulations can differ.