____ should be used for encoding unless you are using special international characters.

Select an advantage of displaying HTML5 video in a web page from the list below:

a. You need to create multiple video files in different formats. b. No browser plug-in or player is needed. c. All browsers play all video formats. d. All of the above are advantages.

Transitivity: Suppose the confidence of the rules A ?? B and B ?? C are larger than some threshold, minconf. Is it possible that A ?? C has a confidence less than minconf?

What will be an ideal response?