Big industries are giving employment to ______ people.

The sectors of transportation, health care and social support, as well as lodging and food, have the most employment opportunities when comparing the labor deficit across various businesses. Cities have a large number of physicians, medical facilities, dispensaries, labs, diagnostic facilities, and other healthcare providers. Two to three government hospitals are also present in several large cities with a sizeable population. Good infrastructure, such as improved transportation, electricity, communication, educational, and carrier facilities, make life in cities simple. Both professionals and people making a living salary have a tone of career options in the city. A high rate of migration from villages to cities is a result of the agriculture sector's strong reliance on natural climatic conditions and the incidence of rain. Therefore, option C is the right answer.