Select the most appropriate meaning of the given idiom.
Toffee-nosed

A

A person who thinks he is of a high social class and looks down on people of lower class

B

A solid, respectable and respected member of society

C

Continue to live at the same social standard we have lived at, even though we have money problems

D

A person who seems impolite/of low education at first, but who is usually of good character