Your answer is B. the others do not have four parts and a verb has four principles. im am 100% positive that it is B
"response variable", "regressand", "predicted variable", "measured variable", "explained variable", "experimental variable", "responding variable", "outcome variable", "output variable" or "label".
it all depends on the context :)
Answer: wind instruments, such as the flute.
Answer is B population growth
A. the subject of paragraph
