Answer : The correct option is d. Pinterest.
Pinterest has the longest life for a piece of content. On Pinterest, content can remain visible and relevant for months or even years after it is first posted. This is because Pinterest is a visual search engine that users often use to discover new ideas and inspiration, which means that content can continue to generate traffic and engagement over time. In contrast, content on other social media platforms like Facebook, LinkedIn, and Snapchat typically has a much shorter lifespan and may only be visible to users for a few hours or days.