How many among the following use NULL to indicate failure?mysql_init()

1.	How many among the following use NULL to indicate failure? mysql_init(), mysql_real_connect()
A.	3
B.	2
C.	1
D.	0
E.	None of these
Answer» C. 1

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How many among the following use NULL to indicate failure?mysql_init(), mysql_real_connect()

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How many among the following use NULL to indicate failure?
mysql_init(), mysql_real_connect()