E7B05:What can be done to prevent unwanted oscillations in an RF power amplifier?
Direct answer summary (2024-2028 NCVEC pool)
The official correct answer for E7B05 is Install parasitic suppressors and/or neutralize the stage.
The key fact is Install parasitic suppressors and/or neutralize the stage. Match that fact to the exact condition in the question; the other choices describe a different rule, band, component, or operating situation.