Identify the correct statements from the following:
A. Heisenberg uncertainty principle is applicable to electrons.
B. The size of $$2p_x$$ orbital is less than the size of $$3p_x$$ orbital.
C. The energy of 2s orbital of H atom is equal to the energy of 2s orbital of Li.
D. The electronic configuration of Cr is [Ar] $$3d^5 4s^1$$
Choose the correct answer from the options given below:

A

A, B and C Only

B

A, B and D Only

C

B, C and D Only

D

A, C and D Only