问题
单项选择题
Which of the following is least accurate An interest rate collar is:（）
A. a combination of a long cap and a short floor.
B. a combination of a short cap and a long floor.
C. a combination of a long cap and a long floor.
答案
参考答案：C
解析：
利率领是由一组利率顶和利率底组成，或者是由一组利率顶的多头和利率底的空头组成，抑或是由一组利率顶的空头和利率底的多头组成。