When analyzing situations, which imposes an express opportunity cost on the government? (1 point)

• A government collects $1 trillion in taxes.
• A government gets positive media coverage for helping refugees.
• A government prosecutes a person for violating cybercrime laws.
• A government spends $1 billion on a hydro dam to generate electric.

The correct answer is: A government spends $1 billion on a hydro dam to generate electricity.