x, y, z, w are four odd natural numbers. Let\[u=\]\[{{x}^{2}}+{{y}^{2}}+{{z}^{2}}+{{w}^{2}}\]. Consider following statements I. U is always divisible by 4 II. U is never divisible by 8 Which of the above statements) is /are true?

x, y, z, w are four odd natural numbers. Let\[u=\]\[{{x}^{2}}+{{y}^{2}

1.	x, y, z, w are four odd natural numbers. Let\[u=\]\[{{x}^{2}}+{{y}^{2}}+{{z}^{2}}+{{w}^{2}}\]. Consider following statements I. U is always divisible by 4 II. U is never divisible by 8 Which of the above statements) is /are true?
A.	Only I
B.	Only II
C.	Both I and II
D.	neither I nor II
Answer» B. Only II

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x, y, z, w are four odd natural numbers. Let\[u=\]\[{{x}^{2}}+{{y}^{2}}+{{z}^{2}}+{{w}^{2}}\]. Consider following statements I. U is always divisible by 4 II. U is never divisible by 8 Which of the above statements) is /are true?

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