Why should you always finish reading difficult content?
a. difficult content is usually covered on the test
b. the content may become more clear as the concept builds upon itself
c. difficult content usually contains important vocabulary words
d. none of these

b. The content may become clearer as the concept builds upon itself

Explanation:

When encountering difficult content during a reading, it is usually the case that it is difficult because the contents of the text and its ideas are still being developed and as such they need to follow an argumentative line that only, eventually will round up the ideas and concepts used throughout the text; that is to say, one should be a charitable reader and allow the author to elaborate upon his or her ideas, even if they are of an obscure of difficult nature, so that eventually, and ideally, one ends up grasping the meaning and sense of the text.

b. The content may become clearer as the concept builds upon itself

Explanation:

When encountering difficult content during a reading, it is usually the case that it is difficult because the contents of the text and its ideas are still being developed and as such they need to follow an argumentative line that only, eventually will round up the ideas and concepts used throughout the text; that is to say, one should be a charitable reader and allow the author to elaborate upon his or her ideas, even if they are of an obscure of difficult nature, so that eventually, and ideally, one ends up grasping the meaning and sense of the text.

wheres the options? i dont think this can be solved with out the options

it would be d because the however is more proper and the comma is placed in the right spot