Answer:
a) Imprinting
Explanation:
Konrad Lorenz is famous by his studies on imprinting. He investigated the mechanisms of how imprinting takes place.
Imprinting refers to the mechanisms that some animals have where they form an attachment to the first large moving object that they meet. By doing this, studies have suggested that attachment is innate and programmed genetically.
Konrad Lorenz did a particular study in which he established himself as the first moving thing a clutch of newly hatched goslings saw. These goslings followed him around, thinking he was his mother.
Thus, Lorenz explored, by doing this, the concept of imprinting.