Which social media platform is widely used for video sharing?

Social media platforms are very popular for communication, entertainment, and sharing information online. Among them, YouTube is one of the most widely used platforms for video sharing. It allows users to upload, watch, like, comment on, and share videos with people around the world. Millions of creators use YouTube to share educational content, music, gaming videos, tutorials, news, and entertainment.
YouTube is easy to use and supports videos of different lengths and qualities. People can access it on mobile phones, tablets, laptops, and smart TVs. It is also useful for students and professionals because they can learn new skills through video lessons and tutorials. Businesses and content creators use YouTube for marketing and audience engagement.
The other options are not social media video-sharing platforms. Excel is spreadsheet software used for calculations and data management. WordPad is a basic text-editing application, while Calculator is used for mathematical calculations. These applications do not provide video-sharing features like YouTube.
Because YouTube is specially designed for uploading and sharing videos online, it is the correct answer. Therefore, the correct option is A. YouTube.