Let $l > 0$ be a real number,$C$ denote a circle with circumference $l$,and $T$ denote a triangle with perimeter $l$. Then:

• A
  given any positive real number $\alpha$,we can choose $C$ and $T$ as above such that the ratio $\frac{\operatorname{Area}(C)}{\operatorname{Area}(T)}$ is greater than $\alpha$
• B
  given any positive real number $\alpha$,we can choose $C$ and $T$ as above such that the ratio $\frac{\operatorname{Area}(C)}{\operatorname{Area}(T)}$ is less than $\alpha$
• C
  for any $C$ and $T$ as above,the ratio $\frac{\operatorname{Area}(C)}{\operatorname{Area}(T)}$ is independent of $C$ and $T$
• D
  there exist real numbers $a$ and $b$ such that for any circle $C$ and triangle $T$ as above,we must have $a < \frac{\operatorname{Area}(C)}{\operatorname{Area}(T)} < b$