If a is an array of 5 integers then which of the following is the correct way to increase its size to 10 elements?

Question: If a is an array of 5 integers then which of the following is the correct way to increase its size to 10 elements?
[A].

int[] a = new int[5];
int[] a = new int[10];

[B].

int[] a = int[5];
int[] a = int[10];

[C].

int[] a = new int[5];
a.Length = 10 ;

[D].

int[] a = new int[5];
a = new int[10];

Answer: Option D

Explanation:

No answer description available for this question.