Identify The $\mathrm{C}_{4} \mathrm{H}_{9} \mathrm{Cl}$ Isomer Given the Following Proton NMR Data:
Doublet

Identify the $\mathrm{C}_{4} \mathrm{H}_{9} \mathrm{Cl}$ isomer given the following proton NMR data:
Doublet $\quad \delta 1.04(6 \mathrm{H})$
Multiplet $\quad$$\delta 1.95(1 \mathrm{H})$
Doublet $\quad$$\delta 3.35(2 \mathrm{H})$

A)

B)

C)

D)