Answer:
d. a low salary is one of the cons of teaching, even for experienced teachers.
Step-by-step explanation:
The best way to summarize this part of the section is to state that a low salary is one of the cons of teaching and that this is also true for experienced teachers. The section talks about how pay is low and continues to be low no matter how long you have been teaching. This is an important part to include. It is also good to put that low pay is a con becuase it makes it more clear what the author is arguing.