Answer:
Option A and B. The actions that represent capital investments are the purchased taxi cabs and the purchased garage.
Step-by-step explanation:
One of the definitions of Capital investment is a company's acquisition of long-term assets that will help the company to run efficiently and to grow faster. This long-term acquisitions can be in the form of real-estate, machinery or manufacturing plants, this is to say that they are physical assets. When Nicholas started his taxi cab business and he purchased taxi cabs and a garage, he was using capital investment, as these two assets are physical and are also long-term acquisitions that will help the business to grow and to operate successfully.