Answering the question "Are any of the links on this page dead, broken, or no longer working?" is useful in establishing which characteristic of an online source's overall credibility?a. Authorityb. Accuracyc. Currencyd. Coverage

c. Currency

Explanation:

Finding "credible sources" on the internet is very crucial when looking for online information. In order to make sure you have obtained a credible information, you should know the four characteristics that are essential in confirming its credibility. These are: Authority, Accuracy, Currency and Coverage.

The question above is related to the characteristic of "Currency." The site has to be updated, which means that the links on the page should be working properly. If they are not working anymore, it goes to show that the site is outdated or it hasn't been updated by webmasters in a long while. So, it means that it is not credible.

i think the answer is a or d

which functions return a valid value without any arguments?

(-blank- and -blank- return a valid value without any arguments.)

1st -blank-

today

sqrt

count

2nd -blank-

round

now

sqrt