34. An unknown volatile organic compound is analyzed by gas chromatography and is found to produce clear signals when detected using a thermal conductivity detector (TCD), an electron capture detector (ECD), and a nitrogen-phosphorus detector (NPD). Based on this information, which of the following elemental compositions is most likely present in the compound?
(A) Carbon, Chlorine, Hydrogen
(B) Carbon, Nitrogen, Bromine
(C) Carbon, Chlorine, Boron
(D) Carbon, Nitrogen, Chlorine
(E) Carbon, Oxygen, Sulfur