Consider integers x, y and z. What is the minimum possible value of $$x^2 + y^2 + z^2$$?

A: x + y + z = 89

B: Among x, y, z two are equal.

A

The question can be answered using A alone but not using B alone.

B

The question can be answered using B alone but not using A alone.

C

The question can be answered using A and B together, but not using either A or B alone.

D

The question cannot be answered even using A and B together.

E

None of these