An individual shifts their focus from a distant sailboat on the horizon to read a text message on a smartphone held 30 cm in front of their face.

Using the diagram as a reference, which option correctly describes the physiological changes that occur in the eye to focus on the smartphone screen?
The ciliary muscles contract, the suspensory ligaments slacken, and the lens becomes thicker and more rounded.
The ciliary muscles relax, the suspensory ligaments tighten, and the lens becomes thinner and flatter.
The ciliary muscles contract, the suspensory ligaments tighten, and the lens becomes thinner and flatter.
The ciliary muscles relax, the suspensory ligaments slacken, and the lens becomes thicker and more rounded.