Concept:
The Demographic Transition Theory was first proposed by Warren Thompson (1929). It explains the transition of a society from high birth and death rates to low birth and death rates with economic development. The theory was developed mainly from the demographic experience of the developed countries, not the less developed countries.
Step 1: Evaluate each statement.
\[
\begin{aligned}
A.&\ \text{True. The theory has descriptive, theoretical and predictive aspects.}
B.&\ \text{True. Warren Thompson first proposed the theory.}
C.&\ \text{False. The theory was primarily based on the demographic experience of developed countries.}
D.&\ \text{True. It explains the transition from high fertility and mortality to low fertility and mortality.}
\end{aligned}
\]
Step 2: Identify the correct combination.
\[
\boxed{
A,\ B,\ \text{and}\ D
}
\]
Hence,
\[
\boxed{\text{(B)}}
\]