Sometimes when authors write for a secondary publication that is based on information from the original publication, they will only use those sections specific to their article. This is because ...

a.

it helps the researcher to evaluate the reliability of the data.

b.

it eliminates possible errors that can occur when transferring data from the original publication to the secondary publication.

c.

it contains detailed descriptions of terms and concepts.

d.

secondary publications contain only data that the author considers to be relevant and do not reflect all the data found in the original publication.