SAT English Practice Question

The text describes a new kind of technology for communicating with a device, a system called “haptic feedback.” The writer explains how it’s been used to improve the experience of playing video games, describing the way the technology sends signals to the player’s hand to create a sense of touch. The writer concludes by suggesting that haptic feedback is a promising new technology for creating more immersive experiences in a variety of fields. What is the function of the second sentence in this passage?

1. A.describe the primary function of the new technology.
2. B.explain how the new technology is used.
3. C.provide an example of how the new technology is used.
4. D.contrast the new technology with older forms of technology.