A rectangular transparent tank is filled with a liquid solution in which solute concentration creates a vertical index of refraction gradient. The index of refraction \(n\) increases continuously from top to bottom along the vertical \(y\)-axis, reaching its maximum value at the bottom of the tank (\(y = 0\)). A narrow laser beam enters the tank horizontally from the left wall at height \(y_0\), traveling initially along the \(+x\)-direction.

Which of the following graphs best represents the path \(y(x)\) of the laser beam as it travels through the liquid?