The spelling of the word "Bentzen" can be explained through the International Phonetic Alphabet (IPA). The initial letter "b" is pronounced as "b" (bi), followed by "e" which is pronounced as "ɛ" (ɛt). The next letter is "n", pronounced as "n" (ɛn), followed by "t" pronounced as "t" (ti), then "z" pronounced as "z" (zɛd), and finally, "e" again, pronounced as "ɛ" (ɛt). Therefore, the correct spelling of "Bentzen" is b-ɛ-n-t-z-ɛ-n.