It seems that you have missed the necessary options to answer this question. But anyway, here is the answer. In “The Colomber” by Dino Buzzati, the colomber pursues Stefano for most of Stefano’s life, the the type of conflict that the Colomber's pursuit illustrate is an EXTERNAL CONFLICT because it's a guy chasing him. It probably creates inner turmoil but is an example of external conflict. Hope this answer helps.