Answers with Explanation:
1. A country can produce more units of good B without reducing the units of good A it produces.
The answer here is "underutilization." This means that the full potential of resources are not met. For example, a person invested in 10 photocopy machines. He was, supposedly, expecting many people to avail of its service. However, the demand for its service has decreased recently. So, this means that the machines will be underutilized, thus resulting into a failure in its investment.
2. A country cannot produce more units of good A without producing fewer units of good B.
The answer here is "efficiency." When it comes to a country's economy, efficiency can only occur if the other entity will be harmed. This will result to the improvement of the other entity. This results into a balance between loss and benefits. One example of this is reducing the number of workers in a farm, but letting them work over time. This leads to less wastage of efforts and labor.
3. A country wants to produce 10 units of good A and 12 units of good B but can produce only 5 units of good A and 4 units of good B.
The answer here is "unattainability." This refers to the inability to achieve your goal. No matter how much a country wants to produce 10 units of good A and 12 units of good B, if it doesn't have the resources and capacity to do so, then such economic situation is unattainable. This is also proven by many things that happen in a person's life. For example, not everyone is meant to be an actress, thus it is an unattainable career for some people.
