Rickshaws, both auto-rickshaws and cycle-rickshaws, are a common mode of transport in:

Urban areas only
Rural areas only
Both urban & rural areas
Neither urban nor rural areas

The correct answer is: c) Both urban & rural areas.

Rickshaws are a type of human-powered or motor-powered vehicle used for transporting passengers. They are typically found in Asia, Africa, and Latin America. Rickshaws are a common mode of transport in both urban and rural areas. In urban areas, rickshaws are often used as a cheap and convenient way to get around. In rural areas, rickshaws are often used as a way to transport goods and people over long distances.

Auto-rickshaws are a type of rickshaw that is powered by a small engine. They are more common in urban areas than cycle-rickshaws. Auto-rickshaws are often used as a taxi service.

Cycle-rickshaws are a type of rickshaw that is powered by a human cyclist. They are more common in rural areas than auto-rickshaws. Cycle-rickshaws are often used as a way to transport goods and people over short distances.

Rickshaws are a controversial mode of transport. Some people argue that they are a form of exploitation, as the drivers are often paid very little and work long hours. Others argue that rickshaws are a necessary part of the transportation system in many developing countries.