An aluminium sphere is dipped into water. Which of the following statement is true? [NCERT Exemplar]

Let volume of the sphere be V and ρ be its density, then we can write buoyant force as                                 F = V ρ g (g = acceleration due to gravity)⇒                            F ∝ ρ      (∵V and g both are constants)⇒                             F4°CF0°C=ρ4°Cρ0°C>1                    (∵ ρ4∘C>ρ0∘C)Hence, buoyancy will be less in water at 0° C than that in water at 4° C.