When you say physical capital, it refers to the additional machinery, building, space etc.
Therefore an example of changing physical capital is B. Building extra space in the factory. By doing this, you are adding additional physical location in where your employee or worker can work.
The correct answer is the second answer:
population increases.
The demographic transition model describes how a population of a country transitions from high birth and death rates to low birth and death rates, as a country becomes more industrialized. This transition occurs through five stages (refer to attached image). In the second stage of the <span>demographic transition model, a country's population increases because birth rates continue to increase, while death rates fall considerably. </span>
The most suitable word for Barcelona would be "enthusiastic". The word enthusiastic comes from the word itself which is "enthusiasm" that means a feeling of energetic interest in a particular subject or activity and a desire to be involved with it. For Barcelona, when you imagine the place, you ought to be interested in what's with the place and what does the place offer.
Socialization teaches impulse control and helps individual develop a conscience,second, socialization teaches individuals how to prepare for and perform certain social rales.