a bullet is dropped from the same height when another bullet is fired horizontally. they will hit the ground

it will drop simultaneously

the entire statement is true and correct.  

there's no diagram, nothing is illustrated, and no question is asked.

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.