AB选项是什么意思啊？可以解释一下吗？谢谢老师

问题如下：

Which of the following statements is least accurate regarding commercial paper？

选项：

A.ECP transaction sizes are typically much smaller and less liquid than the USCP market. B.

Investors usually require a committed backup line of credit in order to minimize rollover risk.

C.Commercial paper typically matures from a few days up to two years.

解释：

C is correct.

Commercial paper typically matures in less than three months and can be used to fund working capital, seasonal demand for cash, or to provide bridge financing.

考点：commercial paper

解析：商业票据期限很短，通常在三个月内到期，可用于筹措流动资金、季节性现金需求或提供过渡性融资。因此，选项C表述错误，当选。