Answer:
sunk-cost fallacy
Explanation:
Sunk-cost fallacy: In psychology, the term "sunk-cost fallacy" is described as a phenomenon that an individual commits when he or she tends to continue a specific behavior or else endeavour as a consequence of formerly invested different resources including effort, time, or money.
Example: A individual buys a movie ticket or a cloth which is non-refundable.
In the question above, Shannon's line of reasoning best illustrates the "sunk-cost fallacy.
