In which situation is the maximum possible work done?

a.
when the angle between the force and displacement is 0°
b.
when the angle between the force and displacement is 180°
c.
when the angle between the force and displacement is 45°
d.
when the angle between the force and displacement is 90°
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a  solution  is always transparent, light passes through with no scattering from solute particles which are molecule in size. the  solution  is homogeneous and does not settle out. a colloid is intermediate between asolution  and a  suspension. while asuspension  will separate out a colloid will not.

a) the particles of the chair are strongly held together.