Boarding ferry

 -Vehicle A can board the ferry because it isn't wider than 2.0 m, longer than 7.0 m or       higher than 2.9 m.


- Vehicle B can't board the ferry because it is higher than 2.9 m.


-Vehicle C can't board the ferry because it is higher than 2.9 m.


-Vehicle D can board the ferry because it isn't longer than 7.0 m wider than 2.0 m or higher than 2.9 m.


So cars A and D can board the ferry.