Which Compound Below Fits the Following Proton NMR Data?
Triplet $\quad$

Which compound below fits the following proton NMR data?
Triplet $\quad$$\delta 1.22(3 \mathrm{H})$
Singlet $\quad$$\delta 1.98(3 \mathrm{H})$
Quartet $\quad$$\delta 4.07(2 \mathrm{H})$

A) A
B) B
C) C
D) D