What are the functions of World Meteorological Organisation?

• A. To facilitate world wide co-operation in the establishment of networks of stations for the making of meteorological observations as well as hydrologicatl or other geophysical observations
• B. To promotestandardization of meteoro1ogical and related observations and ensure the uniform publication of observations and statistics
• C. To promote activities in operational hydrology and to further enhance co-operation between meteorological and the hydrological services
• D. All the above