21) As soon as a pointer variable is freed, its value
a) is set to null
b) become unpredictable
c) is set to 1
d) remains the same
22)The number of additions performed by the above program fragment is
a) 27000
b) 27000 x 3
c) 9000 + 3 x 27000
d) 9930 + 27000 x 3
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