Pressure depends on density and depth only Steps:

• Recall formula for hydrostatic pressure at bottom: P = ρ g h (g constant, so compare ρ × h).
• Calculate for A: 1.3 g/cm³ × 50 cm = 65 g/cm².
• Calculate for B: 1.0 g/cm³ × 80 cm = 80 g/cm².
• Calculate for C: 1.0 g/cm³ × 60 cm = 60 g/cm².
• Calculate for D: 0.92 g/cm³ × 75 cm = 69 g/cm². Why B is correct:
• B has the highest ρ × h value (80), so greatest pressure per P = ρ g h. Why the others are wrong:
• A: ρ × h = 65, less than B's 80.
• C: ρ × h = 60, less than B's 80.
• D: ρ × h = 69, less than B's 80.

Final answer: B