1. How do internal and external finance primarily differ in their sources?
Internal finance is generated from within the business, while external finance is obtained from outside sources
Explication
The source content clearly states that internal finance is generated within the business, such as retained profits and sale of assets, whereas external finance involves funds obtained from outside sources like loans, overdrafts, or issuing shares. The primary difference is thus about where the funds originate, making option 0 the correct choice.