Which phrase best completes this list? Themes of Transcendentalism
Oneness with nature
Individualism
?
A. Financial success
B. The importance of following leaders
C. Travel and exploration
O D. The goodness of humans

One drawback of voluntary trade is that it a.requires two groups to use a common language b.can make one group dependent upon another for necessary goods c.doesn't occur unless there is a shortage of goods for at least one group d.forces groups to rely on themselves to produce all the goods they need