Which of the following is not a valid declaration for a character string?
a) char string1[3] = {“1”, “2”, ‘3’, 4}
b) char string1[12];
c) char string1[] = “this is a string”;
d) char string1[25] = “this is a string”;

a) char string1[3] = {“1”, “2”, ‘3’, 4}

Explanation:

In the declaration we have a string of size 3 from which 1 block is reserved for null character and we are declaring a string of size 4 and out them two are of type string and 1 is a character and 1 is an integer.

All the other three declarations are correct they will run on the IDE.

So we can say that the answer to this question is option a.

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