Answer:
Correct answer is:
communicate the purpose of the code that follows it.
Explanation:
Let have a look at each option
comment should give the reader the background of the programmer.
Comments are unable to do so.
Be written on every line
No, it is not need as comment are useful only to explain difficult or complex part of code.
communicate the purpose of the code that follows it.
yes, this option is true, as comments will give hints to programmer about the piece of code.
give information about how many hours it took to write the code
No, comments can answer it,
Answer:
a reverse chronological journaling site.
Explanation:
A blog originally known as weblog, is an online journal containing informational or educational content, it usually displays information from the last added item ( that is why it is called reverse chronological journaling site), it can be personal or for a corporate entity for promoting brand identity.