I want to know the answer to the following question:
Many researchers prefer what term?
All the background I'm provided with is that "However, Canis familiaris is sometimes used due to an ongoing nomenclature debate because wild and domestic animals are separately recognizable entities and that the ICZN allowed users a choice as to which name they could use, and a number of internationally recognized researchers prefer to use Canis familiaris.". Is that enough to answer the question?
Answer: yes