The Specific Rotation Of Was Converted into the Corresponding Alcohol Via a S_N2 Eaction

The specific rotation of $( R ) - \mathrm { C } _ { 6 } \mathrm { H } _ { 5 } \mathrm { CHOHCH } _ { 3 } \text { is } - 42.3 \text {. A pure sample of } ( R ) - \mathrm { C } _ { 6 } \mathrm { H } _ { 5 } \mathrm { CHClCH } _ { 3 }$ was converted into the corresponding alcohol via a S_N2 eaction. What is the specific rotation of the product?

A) -42.3
B) between 0 and -42.3
C) between +42.3 and 0
D) +42.3