All of the following are concessions to the claim EXCEPT:

A.
Besides vacationing rules and expectations, students need to be frugal with their
spending
B.
Even teenagers would agree that danger lies in wait for unsuspecting young
people.
C.
Many students want independence, but they can't help but recognize the dangers of vacationing sans adults.
D.
We can agree that until they become adults, students should have adult supervision while vacationing.