Ответ:

Buses.

Cost Buses are usually the most economical mode of transportation.

Comfort The comfort of buses depends on the type of bus and the facilities.

Speed: Buses usually travel slower than trains and cabs.

Number of people: Buses are suitable for large groups of people: they can travel in large groups and are therefore suitable for group travel.

Trains.

Fares: fares on trains vary, but are usually higher than on buses.

Comfort: Trains can offer a higher level of comfort, such as spacious seats and amenities.

Speed: Trains are known for their speed and efficiency and are often faster than buses and cabs.

Number of people: Trains can be used for both individual and group travel.

Cab:

Cost: Taxis are usually the most expensive way to travel.

Comfort: Taxis are convenient and comfortable, with private rooms.

Speed: cabs can provide fast and direct transport, especially in urban areas where there is less traffic.

Number of people: cabs are usually available for small groups of up to four or five people.