Final answer:
Construction services cannot be exported because they require physical activity at the location of the project, unlike other services that can be delivered digitally or internationally.
Step-by-step explanation:
The question pertains to the exportability of services and which of the listed options cannot be exported effectively. While insurance services, education, and pure services can be exported (since they can be provided digitally or through international branches), construction generally cannot be exported because it requires physical presence and activity in the location where the construction is taking place.
For instance, you cannot export the service of building a house in one country to a customer living in another country. However, the designs and planning can be shared digitally, the actual construction cannot be done remotely and thus is not exportable.