The 1^st and the last sentences of the passage are numbered 1 and 6. The rest of the passage is split into four parts P, Q, R and S. These four parts are not given in their proper order. Read the sentence and find out which of the four combinations is correct. The find the correct answer and indicate it in the answer sheet.

Q:

1.It has been found
P. While talking to their dogs
Q. had lower blood pressure
R. than they did
S. that people
6. while talking to people.

• 1
  PQRS
• 2
  SRPQ
• 3
  SQPR
• 4
  PQSR