(This Question Pertains to Material in Appendix C Country A's "Index of Intra-Industry Trade Has a Value of Following

Multiple Choice

(This question pertains to material in Appendix C.)
Given the following information on the exports of country A in 2009, and assuming that Goods X and Y are the only goods in country A's trade sector:
$\begin{array}{ccc}&\underline{\text { exports }}& \underline{\text { imports }}\\\operatorname{good} \mathrm{X} & \$ 600 & \$ \\ \text { good Y } & 400 & 800 \\\\\text { tota } & \$ 1,000 & \$ 800 \\\end{array}$

Country A's "index of intra-industry trade has a value of __________.

A) 0.4
B) 0.6
C) 1.0
D) 200