What is the ETSI-allowed usage of the 2.4- GHz band?

What is the ETSI-allowed usage of the 2.4- GHz band?
A. 13 channels, 20-dBm maximum EIRP
B. 12 channels, 100-dBm maximum EIRP
C. 14 channels, 20-dBm maximum EIRP
D. 11 channels, 10-dBm maximum EIRP