Given below are four jumbled sentences. Pick the option that gives their correct order.

P. The average adult gets two to four colds a year, while the average child may get six to eight.

Q. It is the most frequent infectious disease in humans.

R. They occur more commonly during the winter.

S. The common cold, also known simply as the cold, is a viral infectious disease of the upper respiratory tract that primarily affects the nose.

The correct answer is 'Option 2'.

Key Points

• The correct order for the sentences is indeed SQPR.
• The first sentence (S) introduces the topic, which is the common cold.
• The next sentence (Q) provides more information about the prevalence of this disease.
• The third sentence (P) offers specific details about how often adults and children typically get colds.
• Finally, the last sentence (R) provides additional information about the seasonal occurrence of colds.
• This order creates a clear, logical progression of ideas about the common cold.

Therefore, the correct sentence is: 'The common cold, also known simply as the cold, is a viral infectious disease of the upper respiratory tract that primarily affects the nose (S). It is the most frequent infectious disease in humans (Q). The average adult gets two to four colds a year, while the average child may get six to eight (P). They occur more commonly during the winter (R).'