Answer:
checking that the source is reliable and current.
Explanation:
The credibility of a non-fiction text depends upon it's reliablity and currentness. While choosing a non-fictional text, the aspects that should be kept in mind are the accuracy and reliablity of the text.
Source credibility is an important dimension while selecting a non-fiction text. And the credibility of source depends upon certain aspects such as accuracy, reliablity, currency, coverage, etc.
So, from the given options the correct option is checking reliablity and currency of the source is important aspect while choosing a non-fiction credible text.
