Answer:
$12,000 is a sunk cost
Step-by-step explanation:
The opportunity cost is the csot of the best rejected option. by investing in this new project Jhon is not resinging to any of there proposed amount as they are uncertain. Jhon cannot obtain from the Hyper Cyber stock those amount.
The 12,000 is a sunk cost as they are already incurred. Jhon should decide which is the best investment for the 4,000 dollars currently has. Consider investment with a value of 12,000 or 125,000 is not a realistic nor useful approach.