Why do we designate one of the candidate keys of a relation to be the primary key?

It policy compliance and emerging technologies respond to the following: propose at least three control measures that organizations need to put in place to ensure that they remain complaint with emerging technologies and in a continually changing it environment. examine the correlation of effective configuration management and change control procedures to remain compliant with emerging technologies and it security changes.

Which of the following is an example of intellectual properly! oa. new version of a novelb. journal of ideasc. pages of a bookood. lines of a poem

Whats three fourths of 15(this is supposed to be in math but i clicked too fast)