Solution
$$(3x - 4)^3$$ = $$(3x - 4)(3x - 4)^2$$
= $$(3x - 4)(9x^2+16-24x)$$
= $$27x^3+48x-72x^2-36x^2-64+96x$$
= $$27x^3-108x^2+144x-64$$
The coefficient of x in the expansion = 144
Hence, the correct answer is Option C
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