Correct Answer: QPRS

Solution : The correct choice is the fourth option.

This paragraph introduces the concept of the Nobel Prize (sentence Q), explains its origin (sentence P), details the categories, mentioning medicine (sentence R), and concludes by providing a recent example related to the medicine category (sentence S).

So the most logical order for the sentences to form a coherent paragraph is:

• Q. A Nobel Prize is an award that is given to someone whose work has benefited society.
• P. The award is named after Alfred Nobel, the Swedish inventor of dynamite.
• R. This award is given in six categories, and medicine is one of those categories.
• S. This year, Professors David Julius and Ardem Petapoutian have won this prize for medicine.

Therefore, the most meaningful sequence is QPRS.