On a scale from 0-5, where 0 is "not similar" and 5 is "very similar", how similar is the sentence "two big brown dogs running through the snow." to the sentence "A brown dog running through the grass."?

Possible answers:
 A). 0.
 B). 1.
 C). 2.
 D). 3.
 E). 4.
 F). 5.
C).