"Who" called dogs man's best friend? what type of word is who in a sentance

"Who" is a pronoun in the sentence.

The phrase "man's best friend" refers to dogs, and "who" is a pronoun in the sentence.

The quote "A dog is man's best friend" is a popular saying, traditionally attributed to Frederick II, King of Prussia. The word "Who" in a sentence can function as an interrogative pronoun or as a relative pronoun, depending on its role in the sentence.

In the sentence "Who called dogs man's best friend?," the word "who" is serving as an interrogative pronoun. It is used to ask about the identity of the person who made the statement or claim mentioned earlier.

To find the answer to the question, you may need to conduct research or consult reliable sources like books, articles, or credible websites. You can search for the origin of the quote or famous individuals associated with the saying. Be sure to look for reputable sources to ensure accurate and reliable information.