Given an integer n and an array a of length n, your task is to apply the following mutation to a: array a mutates into a new array b of length n. for each i from 0 to n - 1, b[i] = a[i - 1] + a[i] + a[i + 1].if some element in the sum a[i - 1] + a[i] + a[i + 1] does not exist, it should be set to 0. for example, b[0] should be equal to 0 + a[0] + a[1].

answer; i do believe that the correct answer is : a deadly factory fire;

yes we can change both the color of the value of a cell as well as background color of a cell at the same time .

as we know that excel sheet consists of columns and rows.

and intersection of column and row is called cell.

we can change color of the cell and background of the cell at the same time.

hence the statement that

can a person change color of the cell and background of the cell at the same time is true.

b. xor is the correct answer