Which file format is most suitable for streaming video content?

MP4 is the most suitable file format for streaming video content due to its widespread compatibility and efficiency in compressing video data while maintaining quality. This format uses advanced codecs such as H.264 and AAC for video and audio compression, respectively, allowing for high-quality playback even at lower bit rates.

Additionally, MP4 supports various resolutions and is easily integrated into web platforms, making it ideal for streaming services. This versatility ensures that viewers can access content on a variety of devices, including desktop computers, smartphones, and tablets, without encountering major compatibility issues.

In contrast, AIF is primarily an audio format, making it unsuitable for video content. JPEG is an image format that cannot support video at all, and DOCX is a document file format designed for text, which does not accommodate video data. Therefore, MP4 stands out as the optimal choice for streaming video effectively.