Answer:
The correct answer is: whenever they over- or under-allocate resources to a project.
Explanation:
A government is considered to be wasteful by the economists if it over-allocates or under-allocates resources on a project. Whenever resources are not efficiently or optimally allocated it is considered wasteful.
In case resources are over-allocated, the reason is given that the excess resources could have been used somewhere else.
In case resources are under-allocated, the reason is given that the given resources will not be able to provide the desired output.