What is one literary element that readers should consider when exploring how different literary genres approach the same subject?
a. the ease of difficulty with which the subject can be analyzed.
b. the authors personal feelings about the genres they select
c. the use of structure that may be characteristics of a genre.
d. the opinions of biased individuals with knowledge of the matter

The correct answer is option A. "The ease of difficulty with which the subject can be analyzed".

Explanation:

Comparing and exploring how different literary genres approach the same subject could be a laborious task considering that literary genres could have a lot of differences and particularly some subjects are very complex to analyze. Therefore, before exploring the differences, the readers should consider the difficulty of the subject of interest to be analyzed. Some subjects are plausible to be analyzed and some could be very hard to analyze.

the present continuous is a verb tense which is mainly used to indicates that an action is in progress at the moment of speaking.  

it is formed using: person + verb to be (am/is/are) +verb + - ing form  

example: i am studying at this moment .

in addition, the present continuous is also used in order to express things that will or will not happen in the near future.

example: i am having dinner with some friends tonight.

the speaker sometimes   uses it   to express that an action is repeated and it causes irritation on the part of the speaker

example: my sister is constantly complaining about everything.

what does the teacher mean