I wouldn't say it is wording related thing ;)
Let's see what options we have to redirect traffic to our brand new tunnel:
- autoroute announce
- static route
- PBR
We can exclude static immediately as it is not mentioned in the task and by default it is prohibited.
PBR - it is not easy to definied which traffic we want to redirect via tunnel, but if you wish I believe you could use it as a alternate solution
Autoroute announce is the easiest/fastest way of dealing with this "issue" and if it is not prohibited in a task I would always use it.