Welcome to Westonci.ca, your one-stop destination for finding answers to all your questions. Join our expert community now! Discover reliable solutions to your questions from a wide network of experts on our comprehensive Q&A platform. Join our Q&A platform to connect with experts dedicated to providing accurate answers to your questions in various fields.

Which of the following is NOT a problem for that tripartite model mentioned in the previous question? Some of the three sustainability categories are arguably sub-categories of the other sustainability:
a) Economic sustainability
b) Environmental sustainability
c) Social sustainability
d) None of the above