Which frequency ranges are used in an IEEE 802.11a-compliant wireless LAN? (Choose two.)

Which frequency ranges are used in an IEEE 802.11a-compliant wireless LAN? (Choose two.)
A . 900 MHz ISM range
B . 2.40 GHz ISM range
C . 5.25 GHz UNII range
D . 5.35 GHz UNII range

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Answer: CD