The Table Below Illustrates That,in One Day,Tristan Can Produce Either

Multiple Choice

The table below illustrates that,in one day,Tristan can produce either 12 fishing lures or mow 3 lawns,while Thomas can produce either 6 fishing lures or mow 6 lawns. $$\begin{array} { | l | c | c | } \hline & \text { Fishing Lures } & \text { Mowed Lawns } \\\hline \text { Tristan } & 12 & 3 \\\hline \text { Thomas } & 6 & 6 \\\hline\end{array}$$ TABLE 1- 1
-Suppose there are only two goods produced in our economy-snowplows and helicopters.If there is always a two- for- one tradeoff between the production of these two goods (in terms of opportunity cost) ,then the production possibilities boundary between snowplows and helicopters is

A) a downward- sloping straight line with slope equal to - 1.
B) a downward- sloping curve concave to the origin.
C) a downward- sloping curve convex to the origin.
D) a downward- sloping straight line.
E) circular.