Consider the following two statements about the internal conditions in an n-channel MOSFET operating in the active regionS1: The inversion charge decreases from source to drainS2: The channel potential increases from source to drainWhich of the following is correct?

• A. Only S2 is true
• B. Both S1 and S2 are false
• C. Both S1 and S2 are true, but S2 is not a reason for S1
• D. Both S1 and S2 are true, and S2 is a reason for S1