Can we draw the following hypothesis from the context (see options)?

Context:

Hertfordshire ( ; often abbreviated Herts) is a county in southern England, bordered by Bedfordshire to the north, Cambridgeshire to the north-east, Essex to the east, Buckinghamshire to the west and Greater London to the south. For government statistical purposes, it is placed in the East of England region.

Hypothesis: Hertfordshire is larger than Greater London
Possible answers: [-] Yes; [-] It's impossible to say; [-] No;
It's impossible to say