video embedding – full htlm – novice question

I would like to embed a video to my site and have followed the seemingly easy steps. Coming to the crucial point of selecting ‘full htlm’ I don’t have that option. I only have ‘safe htlm’ and ‘plain text’. I think I am running Drupal 8. Does anybody have an inclination to what’s going on? I’d love to get some pointers. Thanks.

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