国际货物买卖合同和技术进出门合同争议提起的诉讼时效为（）年。

A.1

B.2

C.3

D.4

An analyst does research about the option markets and contracts. With respect to an option on a non-dividend paying stock, and all else being equal, which of the following statements is most accurate The longer-term European put will tend to be worth more than the short-term European put when:（）

A. volatility is greater and interest rates are lower.

B. volatility is greater and interest rates are higher.

C. volatility is less and interest rates are higher.