某宏观经济体，其基础货币为B，货币乘数为S，通货为C，存款准备金为R，货币供给量为Ms，存款货币为D。根据上述资料，回答以下问题：
基础货币又称高能货币、强力货币或货币基础，其主要包括（）。

A．Greek income and expenditures
B．The improving economic situation in Greece
C．The value of tourism
D．Military expenditures

A．people are more concerned with the image of a product rather than the product itself
B．it saves manufacturers from considering how the products can appeal to customers
C．there are all kinds of media available
D．there are many excellent advertisers who can make their voices authoritative