For a non-spherical particle, the sphericity

[A].	is defined as the ratio of surface area of a sphere having the same volume as the particle to the actual surface area of the particle.
[B].	has the dimension of length.
[C].	is always less than 1.
[D].	is the ratio of volume of a sphere having the same surface area as the particle to the actual volume of the particle.

Answer: Option A

Explanation:

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