A spherical cell with a diameter of 10 $\mu$ m would exchange substances and waste products with its environment more efficiently than a _______,all else being equal.

A) spherical cell with a diameter of 7 $\mu$ m
B) flattened cell of the same volume
C) spherical cell with a diameter of 15 $\mu$ m
D) cuboidal cell of the same volume
E) None of the above;all cells exchange substances and waste products with the environment at the same rate,irrespective of size and shape.