Final Answer:
The Navy "E" ribbon signifies permanent duty on ships or in squadrons that won Battle Efficiency competitions after July 1st of 1974.
The correct Option: 4. After July 1st of 1974.
Step-by-step explanation:
1. *Navy "E" Ribbon:* This refers to a military decoration, specifically the Navy "E" ribbon, awarded for Battle Efficiency competition achievements.
2. *Permanent Duty on Ships or in Squadrons:* This part specifies the context in which the Navy "E" ribbon is earned, indicating that it is associated with individuals serving on ships or in squadrons.
3. *Battle Efficiency Competitions:* The Navy "E" ribbon is awarded based on success in Battle Efficiency competitions, emphasizing a level of excellence and proficiency in military operations.
4. *After July 1st of 1974:* This is a critical timeframe. The Navy "E" ribbon is granted for Battle Efficiency competition victories that occurred after July 1, 1974. This date signifies the starting point for eligibility, and accomplishments before this date would not be considered.
Correct Option: 4. After July 1st of 1974.