In the following question, the 1st and the last parts of the sentence are numbered 1 and 6. The rest of the sentence is split into four parts and named P, Q, R, and S, are not in the proper order. Select from the. answer choice provided, under each question, the combination to make a meaningful sentence:

1 : The advantage of travelling
P : customs and manners, is that
Q : we learn to appreciate the good points of others
R : in different places and having
S : the opportunities of observing people's
6 : and our prejudice against them disappears.
The proper sequence should be: