To answer this question, you need to be familiar with the terminology used to describe the young ones of different animals, including owls.
Option A) Baby Owl - This option is incorrect. While it is common to refer to the young ones of many animals as "babies," the specific term for the young one of an owl is not "baby owl."
Option B) Owl - This option is incorrect. "Owl" refers to the adult bird, not the young one.
Option C) Owling - This option is incorrect. "Owling" is not the correct term for the young one of an owl.
Option D) Owlet - This option is correct. The young one of an owl is called an "owlet." This term is used to specifically refer to a baby owl.
The correct answer is D) Owlet. This option is correct because it accurately identifies the young one of an owl.