British NVC community OV6 ("Cerastium glomeratum" - "Fumaria muralis" ssp. "boraei" community) is one of the open habitat communities in the British National Vegetation Classification system. It is one of six arable weed and track-side communities of light, less-fertile acid soils.

Based on that paragraph can we conclude that this sentence is true?
it is the least popular in the British national Classification system 

Possible answers:
 (a). Yes.
 (b). It's impossible to say.
 (c). No.
(b).