Answer : Option 'D' is correct.
[tex]0.0015m^{3}[/tex] = [tex]1.5\times 10^{6}mm^{3}[/tex]
Explanation 1) : 1 m = 100 cm
[tex]1 m^{3}= 1000000 cm^{3}[/tex] or [tex]1 m^{3}= 10^{6} cm^{3}[/tex]
[tex](0.0015m^{3})\times \frac{(1000000cm^{3})}{(1m^{3})}[/tex]
[tex](0.0015)\times \frac{(1000000cm^{3})}{(1)}[/tex] = [tex]1500cm^{3}[/tex]
[tex]0.0015m^{3}[/tex] = [tex]1500cm^{3}[/tex] = [tex]1.5\times 10^{3}cm^{3}[/tex]
Explanation 2) : 1 m = 1000 mm
[tex]1m^{3}= 1000000000mm^{3} = 10^{9}mm^{3}[/tex]
[tex](0.0015m^{3})\times \frac{(10^{9}mm^{3})}{(1m^{3})}[/tex]
[tex](0.0015)\times \frac{(10^{9}mm^{3})}{(1)}[/tex] = [tex]1500000 mm^{3}[/tex]
[tex]0.0015m^{3}[/tex] = [tex]1500000 mm^{3}[/tex] = [tex]1.5\times 10^{6}mm^{3}[/tex]
Option 'D' is right.