如果没有available的话就选b么？

问题如下：

A index weights each of its constituent securities by its price and the number of its shares available to the investing public is a:

选项：

A.

price-weighted index.

B.

market-capitalization-weighted index.

C.

float-adjusted market-capitalization-weighted index.

解释：

C is correct.

A float-adjusted market-capitalization-weighted index weights each of its constituent securities by its price and the number of its shares available to the investing public."Float" is the number of shares available for public trading.

考点：float-adjusted market-capitalization-weighted index

这道题目的考点是float-adjusted market-capitalization-weighted index 的定义。以市值为权重，即是以“股价*总股本”为权重，而Float-adjusted是要调整为以流通股市值为权重，即“股价*流通股数量*”。