Statement: Every monsoon, several people drown while swimming in the sea at city beaches. Courses of Action: I. Deploy at least two trained lifeguards at each beach during the monsoon. II. Caution and educate beachgoers about monsoon risks via announcements and patrols. III. Install prominent signage near treacherous sections advising against entering the sea in monsoon.

Introduction / Context:
Rough seas, rip currents, and poor visibility increase drowning risk in monsoon months. Layered risk controls—people, process, and signage—are standard.

Given Data / Assumptions:

• Incidents recur annually.
• Beaches attract swimmers despite advisories.

Concept / Approach:
Lifeguards (I) provide rapid rescue and enforcement. Public cautioning (II) shifts behavior. Signage (III) provides persistent, location-specific warnings. Together, they reduce exposure and improve response times.

Step-by-Step Solution:
1) Staff trained lifeguards and rescue equipment (I).2) Use loudspeakers, patrols, and digital alerts (II).3) Place and maintain high-visibility signs at risk hotspots (III).

Verification / Alternative check:
Beach safety programs worldwide rely on this triad.

Why Other Options Are Wrong:
Pairwise options miss the comprehensive approach; “Only” options are inadequate.

Common Pitfalls:
Untrained volunteers without equipment; faded or poorly placed signage.

Final Answer:
All follow.