Which of the Following Compounds Has a Significant Absorption Band $\mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { OH }$

Which of the following compounds has a significant absorption band in the 1720 - 1780 cm^-1 range of its IR spectrum?

A) $\mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { OH }$
B) $\mathrm { CH } _ { 3 } \mathrm { C } \equiv \mathrm { CCH } _ { 2 } \mathrm { CH } _ { 3 }$
C) $\mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { CH } \left( \mathrm { NH } _ { 2 } \right) \mathrm { CH } _ { 3 }$
D) $\left( \mathrm { CH } _ { 3 } \right) _ { 3 } \mathrm {~N}$
E) $\mathrm { CH } _ { 3 } \mathrm { CO } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 3 }$