Which of the following jumbled descriptions correctly describes a 'computer'?

A. AN ELECTRONIC DEVICE THAT PROCESSES DATA AND PERFORMS TASKS ACCORDING TO A SET OF INSTRUCTIONS.

A is the brother of B. C is the sister of A. How is C related to B?

A. SISTER

If A is the brother of B, and B is the sister of C, how is A related to C?

A. BROTHER

If A + B means A is the brother of B, A - B means A is the sister of B, and A × B means A is the father of B, what is the relationship of C if A + C × B?

C. C IS THE SON OF A

X is the mother of Y. Y has a brother Z. What is Z's relation to X?

A. SON