In the given question, a statement divided into different segments is given. Rearrange all the segments to form a coherent statement.

The correct answer is option d) i.e. QOPSR.

The sentence talks about how population will grow in poorest countries and shrink in rich countries. The correct order to form a coherent statement is: QOPSR.

Q introduces the context “among the world’s poorest countries”,

O and P state the prediction “population is expected to triple in the next 50 years”,

S and R contrast this with the situation in rich countries “whereas many rich countries will see population shrinkage in that period”.

So, the sentence reads: Among the world’s poorest countries, population is expected to triple in the next 50 years whereas many rich countries will see population shrinkage in that period.