求助，OG--61

yangmbalin

61. Neither a rising standard of living nor balanced trade, by itself, establishes a country’s ability to compete in the international marketplace. Both are required simultaneously since standards of living can rise because of
growing trade deficits and trade can be balanced by means of a decline in a country’s standard of living.

If the facts stated in the passage above are true, a proper test of a country’s ability to be competitive is its
ability to
(A) balance its trade while its standard of living rises
(B) balance its trade while its standard of living falls
(C) increase trade deficits while its standard of living rises
(D) decrease trade deficits while its standard of living falls
(E) keep its standard of living constant while trade deficits rise
就是不理解为什么会选择A,而不选择C
还有我猜测这句话：Both are required simultaneously since standards of living can rise because of growing trade deficits and trade can be balanced by means of a decline in a country’s standard of living.的理解可能导致我选错，所以谁能解释一下这句话到底是谁导致了谁，太多的because of +since，

yidiyuehans

c是说增加财政赤字而提高人民生活。
用常识也知道，财政赤字高是不好的。