问题如下：
Among the following descriptions about gross domestic product (GDP), which is most likely to be true?
选项：
A.GDP is the total market value of final goods and services produced or resalable within the economy over a given time period.
B.GDP is the total amount spent on all final goods and services produced within the economy over a given time period.
C.GDP is the total verified income earned by all households, firms, and the government.
解释：
B is correct.
According to definition, GDP is the total amount spent (which is equal to market value) on all final goods and services produced over a certain period of time.
考点：GDP定义
解析：B的说法从支出法定义出发，最符合GDP定义。
A说法包含了再销售的商品，不准确。
C说法没有定义一个段具体的时间段，不够准确。
如果C选项给出了具体时间段的话是不是也就正确 了呢？还是还得需要加上折旧呢？
