We have a $2$D array, nums, which has been defined to hold $4$ rows and $3$ columns of integers. The code below uses a pointer, $x,$ to access the items in the array for the purpose of calculating the sum of all integers in the entire array.Fill in the blanks to complete the code.The blanks are numbered for reference purposes. Do not put ANY spaces in your line or Canvas will count it as incorrect. Remember Canvas isn't a compiler and so it can't account for every possible way to write a statement like a compiler can. If your answer is marked wrong and you think it should be correct, send a message to the instructor so it can be reviewed.$(1)2$