Identify displacement and conduction current

Shown below is a part of a circuit that contains a capacitor undergoing charging.

The surfaces $\blueE{\text S_1}$start color #0c7f99, start text, S, end text, start subscript, 1, end subscript, end color #0c7f99 and $\redE{\text S_2}$start color #bc2612, start text, S, end text, start subscript, 2, end subscript, end color #bc2612 cut through the circuit in different regions as shown.