CET Graduation 2022 PYQ Q106

Consider the following statements about Li-Fi: (I) It uses normal bulbs to transfer data. (II) This technology uses the visible spectrum of light. (III) The speed of Li-Fi is slower than Wi-Fi. (IV) It is expected to be cheaper than Wi-Fi. Choose the correct statement.

1. A I and II
2. B II and III
3. C III and IV
4. D II and IV Correct