What is the main advantage of the WebM video file format? A. WebM files are smaller and download faster than other video file formats, but do not sound as good.

B. WebM files are smaller than and effectively compete with other video file formats, but are not open-source.

C. WebM files are larger, download faster, and look as good as other audio file formats.

D. The WebM file format is open-source and effectively competes with proprietary file types.

The main advantage of the WebM video file format are;

D. The WebM file format is opensource and effectively competes with proprietary file types

Explanation:

The main advantage of WebM are;

1) WebM is a royalty free to use open-sourced file format that uses a BSD-style license which encourages innovation among users due to the openness of the core technologies of WebM namely, TCP/IP, HTTP, and HTML

2) WebM is focused on the specific requirements of web videos such that it is a preferred format for online and web video file types

3) Being optimized  for the web, WebM competes effectively with file types developed by other establishments for the web

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explanation: