Consider the following in relation to causes of urbanization and select the correct answer from the code given below: 1. High rate of emigration from rural to urban areas. 2. Increasing number of educational institutions in cities. 3. High rate of industrialization. 4. High standard of living in rural area.

• A. 1, 2 and 3 are correct
• B. 2, 3 and 4 are correct
• C. 1, 2 and 4 are correct
• D. 1, 3 and 4 are correct