If a car travels from town a to town b on one road at different speeds and stops at red lights, knowing the distance between the towns and the total time of the trip can allow you to calculate

The only thing you could calculate with that information would be the car's AVERAGE SPEED for the trip.

If you know the straight-line distance and direction between A and B, then you can also calculate the car's AVERAGE VELOCITY for the trip.

the answer is kevlar

there is no correct list among the choices you've provided.

the list might look something like this:

-- baby human

-- piccolo

-- flute

-- soprano singer

-- trumpet

-- tenor singer

-- trombone

-- baritone singer

-- baritone horn

-- bass singer

-- tuba

since i had to make up the list myself, i made it easy on myself, and i didn't try to shuffle the string instruments and woodwinds into it too.