A number of identical liquid drops and an equal number of identical soap bubbles are separately combined. The liquid drops coalesce with conservation of liquid volume, while the soap bubbles combine isothermally in vacuum without gas loss. Which statement correctly compares the radius relations?

Options

• Option A

  Both processes satisfy R² = sum of the squares of the initial radii.

• Option B

  Both processes satisfy R³ = sum of the cubes of the initial radii.

• Option C

  Liquid drops satisfy R³ = sum of initial radius cubes, whereas soap bubbles in vacuum satisfy R² = sum of initial radius squares.

• Option D

  Liquid drops satisfy R² = sum of initial radius squares, whereas soap bubbles satisfy R³ = sum of initial radius cubes.