Which of the Following Is Not a Characteristic of Wi-Fi

Which of the following is not a characteristic of Wi-Fi?

A) Most laptops today rely on Wi-Fi technology that require being in range of at least one satellite.
B) Wi-Fi performance decreases roughly significantly as distance increases at constant radiation levels.
C) Wi-Fi has fairly high power-consumption compared to some other standards.
D) Wi-Fi is used to support business and compliance requirements,such as the Mine Improvement and New Emergency Response (MINER) Act passed by the U.S.Congress.