Answer:
The missing word in the sentence "Herr Meyer, woher ... Sie?" is "kommen." The correct answer is option b. "kommen."
Step-by-step explanation:
In German, the sentence translates to "Mr. Meyer, where do you come from?" The verb "kommen" means "to come" or "to come from" in English. Therefore, the correct word to fill in the blank is "kommen."