Question
Which of the following aggregation operation adds up all the values of the attribute?(A) add(B) avg(C) $\max$(D) sum
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Refer to the following code segment. You may assume that arr is an array of int values. int sum $=\operatorname{arr}[0], \quad i=0$ while $(\mathrm{i}<\text { arr. } \text { length })$ { $i++$ sum $+=\operatorname{arr}[i]$ Which of the following will be the result of executing the segment? (A) Sum of arr [0], arr [1], ...., arr [arr.length-1] will be stored in sum. (B) Sum of arr $[1],$ arr $[2], \ldots,$ arr [arr. length-1] will be stored in sum. (C) Sum of arr [0], arr [1], ...., arr [arr.length] will be stored in sum. (D) An infinite loop will occur. (E) A run-time error will occur.}
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