We can start solving the given equation by isolating the absolute value term:
4|x - 3| = 0
Since the absolute value of any number is always non-negative, the only way for the left-hand side of the equation to be zero is if the absolute value term is zero. This means:
|x - 3| = 0
And the only solution to this equation is:
x - 3 = 0
x = 3
Therefore, the correct answer is A. x = 3.