Concept:Private enterprises survive by being efficient, accountable, and lawful, not by limiting themselves to foreign workers.
Explanation:Producing quality goods helps an enterprise attract and keep customers.
Keeping proper records supports good management and planning.
Paying taxes regularly keeps the business legally compliant.
Using only foreign labour is not necessary for survival; businesses may use local labour as well.
Therefore, the action that is not required for their continuous survival is using only foreign labour.
Answer:D. using only foreign labour.