The statement which best summarizes the section "The Cons of Teaching" is the following one:
D) Being a teacher has many drawbacks: a low salary, frustration with parents and students, and long hours of work after school has ended.
The statement above is true for the following reasons:
Low salary: teachers earn less than other professionals in most countries, with a few exceptions.
Frustration with parents and students: teachers often have to deal with their students' disdain for the subject taught and also with those students' parents' indifference to their kids' intellectual progress and also to intellectual activities in general.
Long hours of work after school has ended: that means tests to prepare and correct, homework to correct, papers to read, scores to enter, not to mention that a teacher must be very well informed about current events (that goes without saying).
