What is the theme of follow the poem Follow the Drinking Gourd?

Give examples.

2 answers

http://www.google.com/search?q=%22Follow+the+Drinking+Gourd%22&rls=com.microsoft:en-us:IE-SearchBox&ie=UTF-8&oe=UTF-8&sourceid=ie7&rlz=1I7GGIE_en

Theme: http://www.tnellen.com/cybereng/lit_terms/theme.html
It can often be discerned by asking yourself this: "What is the hidden message the author wants me to understand?"
Determine between which consecutive integers one or more real zeros of f(x)=3x^4+x^3-2x^2+4 are located?
A. no real zeros
B. 0 and 1
C. -2 and -3
D. -1 and 0

I was thinking it's either A or C? I need lots of help.