Consider the Following Decay Series: What Is the Complete ${ }_{83}^{127} \mathrm{Bi}$

Consider the following decay series: What is the complete element symbol for the product labeled Y

A) ${ }_{83}^{127} \mathrm{Bi}$
B) ${ }_{82}^{128} \mathrm{~Pb}$
C) ${ }_{83}^{210} \mathrm{Bi}$
D) ${ }_{82}^{210} \mathrm{~Pb}$
E) ${ }_{84}^{210} \mathrm{Po}$