The subject of a source can best be described as themain topic or area of concern. most important idea in the text. tendency to view something in a certain way. way the source wants people to feel or think.

main topic or area of concern.

Explanation:

An information source can be defined as a system or medium through which informations, knowledge and ideas may be gotten and used by an individual. An information source can either be a primary or secondary source of information. The source options for informations are television, radio, web, newspapers, journals, magazines etc.

The four criteria used to evaluate source options are;

1. Accuracy: the user of this source of information should check if the data presented are accurate and credible. At this point, you should ensure that the informations provided are well researched and cited for verification.

2. Authority: you should endeavor to know who the author and publisher of the information source is. Also, it is important to know their qualifications.

3. Currency: it is necessary to know when the information source was created or produced by the author. Also, the user of this data should verify when it was published (in the case of a book) or if it requires an update (in the case of a website). Hence, the information source should be timely.

4. Objectivity: ensure that the source of information is unbiased, reliable, and should not only contain opinions but facts.

Basically, the subject of a source can best be described as the main topic or area of concern.

a. to encourage apoptosis