If the final height of specimen Hf is 13.45mm and final voids is 0.864, then the change of voids ratio ∆e with respect to ∆H is ____________

• A. ∆e=0.139∆H
• B. ∆e=0.123∆H
• C. ∆e=0.178∆H
• D. ∆e=0.148∆H