Pick out the wrong statement pertaining to ‘Horton sphere’ used for the storage of liquid ammonia ?

• A. Diameter of Horton sphere is normally 6 to 25 metres and it is supported by 6 to 12 nos. tubular or rolled section column
• B. Thickness of spherical shell is half that of the cylindrical vessel under same operating pressure condition. Besides, the ratio of surface area to vol
• C. Horton sphere is used for the storage of gases and volatile liquid at a moderate pressure of 1 to 10 kg/cm2
• D. Horton sphere is used for the storage of liquid at sub-zero temperature at very high pressure upto 200 kg/cm2