A cube has a side of length 1.2×10⁻² m. Calculate its volume.

(a) 1.7 ×10⁻⁶ m³

(b) 1.73 ×10⁻⁶ m³

(c) 1.0 ×10⁻⁶ m³

(d) 1.732 ×10⁻⁶ m³