Select the correct statements:
A. State of a system is assumed to be in internal equilibrium and the temperature and pressure are uniform throughout the system
B. Thermal drift in a system with time is more in Dewar flask than in insulated system.
C. Thermal drift in a system with time is more in non-insulated system than in insulated system.
D. Thermal drift in a system with time is more in insulated system than in non-insulated system