Answer:
B. Technological change
Step-by-step explanation:
Physical capital consist of tangible assets such as tools, manufacturing equipments that are used to produce goods and services. It is what a company invests or buy in which is used to further produce goods. Physical capital is one of the three factors of production(land, human and physical capital) hence does not get destroyed during production process.
Physical capital are involved directly in production hence enables smooth and easy process. It therefore follow that most technological change is embodied in physical capital hence make productions possible.