The length of the rectangular wood is 4cm more than twice the height and it's width is four times the height. What are the dimensions of the wood if it's volume is 768 cm^3?

a. 4cm x 4cm x 48cm
b. 6cm x 8cm x 16cm
c. 8cm x 8cm x 12cm
d. 4cm x 12cm x 16 cm

please help me. thank youu

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