Researchers Studying the Ability of Pigeons to Learn Categories Found

Multiple Choice

Researchers studying the ability of pigeons to learn categories found that they are capable of learning

A) multiple categories, though this observation may be based on a particular training method.
B) one concept at a time, but not multiple concepts simultaneously.
C) abstract or uncommon concepts like painting styles or fish types, but not everyday, mundane concepts like grain types or plant types.
D) categories involving stimuli that they encounter every day, showing that preparedness is involved.