A cylindrical plastic bottle of negligible mass is filled with 310 mL of water and left floating in a pond with still water. If pressed downward slightly and released, it starts performing simple harmonic motion at angular frequency ω. If the radius of the bottle is 2.5 cm, then ω is close to (Take, density of water = 103 kg/m3)

• A. 2.50 rad s-1
• B. 5.00 rad s-1
• C. 1.25 rad s-1
• D. 8 rad s-1