During Multidimensional NMR the Sample Is Pulsed with a Radio-Frequency

Multiple Choice

During multidimensional NMR the sample is pulsed with a radio-frequency at different angles, which leads to _________. Choose all that apply.
I. different relaxation times
II. heating of the sample
III. identification of nuclei which are within three bonds of each other in the molecule
IV. identification of nuclei which are spatially in close-proximity in the folded protein
V. identification of side chains

A) I, II and III
B) II, III and V
C) II, III and IV
D) I, III and IV
E) II and V