Re-arrange the jumbled up parts of the sentence which are labeled as P, Q, R, S to produce the correct sentence.

P. it is a wonder that migratory birds
Q. flying thousands of kilometer
R. always manage to find their home
S. without ever getting lost

Choose the correct answer from options given below.

PQRS

The correct answer is Option (1) → PQRS

Rearranged Sentence: It is a wonder that migratory birds flying thousands of kilometer always manage to find their home without ever getting lost.

P. it is a wonder that migratory birds
Q. flying thousands of kilometer
R. always manage to find their home
S. without ever getting lost