Elitmus Exam Numerical Ability Algebra

If w,x,y and z are distinct odd positive integers,then the maximum value of the expression (w^2+x^2)*(y^2+z^2) can be divisible by?
a)2 b)3 c)5 d)10

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Elitmus Other Question

_______call you after the meeting gets over,said Lincoln to Monaic(some name).
a) May I
b) Can I
c) Shall I
d) Will I
can any 1 tell me syllabus of elitmus and sections , how to prepare..