Match the casting defects (Group A) with the probable causes (Group B)

1.	Match the casting defects (Group A) with the probable causes (Group B):
A.	P-1, Q-3, R-2, S-4
B.	P-4, Q-3, R-2, S-1
C.	P-3, Q-4, R-2, S-1
D.	P-1, Q-4, R-4, S-3
Answer» C. P-3, Q-4, R-2, S-1

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Match the casting defects (Group A) with the probable causes (Group B):

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