In Figure E6-1, which is the schematic symbol for an N-channel dual-gate MOSFET?

The key fact is 4. Match that fact to the exact condition in the question; the other choices describe a different rule, band, component, or operating situation.

The key fact is 4. Match that fact to the exact condition in the question; the other choices describe a different rule, band, component, or operating situation.
The official correct answer for E6A10 is 4.
The key fact is 4. Match that fact to the exact condition in the question; the other choices describe a different rule, band, component, or operating situation.