B.
But is it art?
Behind the scenes
I'm sure Justin Paton would not be alone in saying 'no', but nevertheless, here is a bit of a trip down memory lane. All these creations, art or not, have now been destroyed.
First, Trickweld in Madras Street...

Photograph: Simone Stephens
The backpackers hostel in Latimer Square...

Photograph: Simone Stephens
Inside the BNZ, Cathedral Square...

Photograph: Simone Stephens
Alongside the Post Office, Strand Lane...

Photograph: Simone Stephens
Rumpole's bar in the Park Royal (later Crown Plaza) hotel...

Photograph: Simone Stephens
Santorini's Greek restaurant, Gloucester Street...

Photograph: Simone Stephens
and finally the Australasian Motor Inn in Barbadoes Street

Photograph: Simone Stephens
These were all spotted and photographed by Simone Stephens when she was working on the book Public Art in Central Christchurch, published by the Robert McDougall Art Gallery in 1997. The book is now available online, though curiously none of the above was included...