Well, given the capo at the 2nd fret, it's more likely a D than a C. But I'm actually leaning toward GMaj7 (as in for example the intro to Beautiful) because the ring finger could be fingering fret 3 of string 4 with the middle on fret 2 of 3 and so on. Hard to say for sure though.... Does Gord ever use alternate tunings?
PS (fret numbers referred to capo position in above)
-DM