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In a Direct Sequence CDMA system the chip rate is $1.2288 \times 10^{6}$ chips per second. If the processing gain is desired to be AT LEAST $100,$ the data rate

1. must be less than or equal to $12.288 \times 10^{3}$ bits per sec
2. must be greater than $12.288 \times 10^{3}$ bits per sec
3. must be exactly equal to $12.288 \times 10^{3}$ bits per sec
4. can take any value less than $122.88 \times 10^{3}$ bits per sec