In this section each item consists of six sentences of a passage. The first and the sixth sentences are given in the beginning as S1 and 56. The middle four sentences in each have been jumbled up and labelled as P, Q, R and S. You are required to find out the proper sequence of the four sentences and mark your response accordingly on Answer Sheet.
S1: Biology is the youngest of the formalized disciplines of natural science.
S6: Life expectancy of human beings has dramatically changed over the years.
P: However, the twentieth century and certainly the twenty-first century has demonstrated the utility of biological knowledge in furthering human welfare, be it in health sector or agriculture.
Q: The discovery of antibiotics, and synthetic plant-derived drugs, anaesthetics have changed medical practice on one hand and human health on the other hand,
R: Applications of physics and chemistry in our daily life also have a higher visibility than those of biology
S: Progress in physics and chemistry proceeded much faster than in biology.
The correct sequence should be

Options

A. QPRS
B. PRQS
C. RPQS
D. SRPQ