Someone can tell a person who has been consuming alcohol is incapacitated and therefore unable to give consent because:

The correct answer to this open question is the following.

Although you did not provide options, we can comment on the following.

Someone can tell a person who has been consuming alcohol that it is incapacitated and therefore unable to give consent because he can be in an altered state, not able to focus on doing what it needs to do, and this can cause accidents and put other people at risk.

That is why, when an individual has consumed alcohol, he is not allowed to drive a car, for instance. In the workplace, he cannot operate a machine because he is not in its "full five senses," and could get injured if he /she is not totally focused.

Singer Emel Mathlouthi has been called "The Voice of the Tunisian Revolution." A video of one of her songs went viral and became an anthem for protesters in her homeland during the December 2010 uprising. She released her debut album in the U.S. last year.

Explanation:

Ummm... I do not know her but this is what I found.