Consider the following statements regarding iCAO recommendation for correction to basic runway length_________________?_x005F_x000D_1. The basic runway length should be increased at the rate of 7 percent per 300 m rise in elevation above the mean sea level_x005F_x000D_2. The basic runway length after having been corrected for elevation should be further increased at the rate of 1 percent for every 1°C rise in airport reference temperature above the standard atmospheric temperature at that elevation_x005F_x000D_3. The runway length after having been corrected for elevation and temperature should be further increased at the rate of 20% for every 1 percent of effective gradient_x005F_x000D_Select the correct statment

• A. 1 and 2 are correct
• B. 2 and 3 are correct
• C. 1 and 3 are correct
• D. 1,2 and 3 are correct