If x^(y^(z))=1, y^(z^(x))=125 and Z^(y^(...

If `x^(y^(z))=1, y^(z^(x))=125` and `Z^(y^(x))=243` (x,y and z are natural numbers), then what is the value of `9x+10y-18z`?

A

A)`18`

B

B)`15`

C

C)`12`

D

D)`5`

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