A driving instructor says: 'Driving with category awareness mainly matters on the through road; on the other two road categories it barely matters.' Is that a correct summary of the book?
No — the book says you must show the right behaviour on each of the three categories
Yes — the through road is most dangerous due to the high speed, so behaviour matters most there
Explanation
False — trap: the behaviour rule linked only to the fastest category. The book states without exception: on each of the three categories you must show the right behaviour (Book p.81).