Which elements of instructions or information shall always be read back?
Surface wind, visibility, ground temperature, runway-in-use, altimeter settings, heading and speed instructions.
Runway-in-use, visibility, surface wind, heading instructions, altimeter settings.
Runway-in-use, altimeter settings, SSR codes, level instructions, heading and speed instructions.
Time check, runway-in-use, altimeter settings, level instructions, SSR codes.