Normal Temperature Pressure (NTP)

            T = 25^o C = 298K

            P = 1atm = 101325 Pa

            Molar volume  = 24.5 to 24.8 Liters

Standard Temperature and Pressure (STP)

            T = 0^o C = 273K

            P = 1atm = 101325 Pa

            Molar volume = 22.4 to 22.7 Liters

Standard ambient temperature and pressure (SATP)

            T = 25^o C = 298K

            P = 100 KPa = 100 x 10³ Pa

            Molar volume  = 24.8 Liters

Note: At NTP, option (A) is nearest and also unit should be in liters.

Hence, the correct option is (A).