Spread spectrum simply means that data is sent in small pieces over a number of the ( ) (A.continuous B.high C.low D.discrete ) frequencies available for use at any time in the specified range. Devices using ( ) (A.direct-sequence B.discrete-sequence C.duplicate-sequence D.deicate-sequence) spread spectrum(DSSS) communicate by ( ) (A.splitting B.combining C.packing D.compacting)each byte of data into several parts and sending them concurrently on different ( ) (A.bits B.frequencies C.packets D.messages). DSSS uses a lot of the available ( ) (A.rate B.velocity C.bandwidth D.period), about 22 megaherta(MHz).