What does the word "appreciation" mean

A．they want to sell as much as possible in Japan
B．direct marketing enables them to avoid the multitier distribution channels
C．they prefer to keep the same price as it is in U. S.
D．the cost of their products is low.

A．More and more people are buying imported goods
B．They face the challenges from all imported goods
C．Long work hour hinders the expansion of traditional retail sales.
D．High inflation prevents the market from developing.