What is subject-by-subject organization
each subject is discussed in
each item of comparison is discussed
each subject is discussed separately
each item of comparison is discussed in turn

Answer:

In subject-by-subject organization "Each subject is discussed separately. "

Explanation:

This subject by subject organization comes under comparative analysis. In relation with parallelism and “compare and contrast” method, this is another method to compare any two documents where each subject is discussed separately.

This technique is kind of a detailed analysis to every subject that were explained and detailed. This also broadens the idea for both the reader and the author to understand the flaws and make the content better.

the answer would either be a or d

i hope this