General

Which note gives thanks to a teacher in the best way?

Rank from best to worst.

#1: http://oi49.tinypic.com/of1z0o.jpg
#2: http://oi48.tinypic.com/2q8a7if.jpg
#3: http://oi50.tinypic.com/2n1hyth.jpg
#4: http://oi50.tinypic.com/2r3uusz.jpg