20 points come an get it ppl! : d
pretend you are an electron in a copper wire which is being used to connect a battery to a flashlight bulb. because this circuit uses a(n) current, you as the electron in the wire will
a)
alternating, move first one way then the other.
b)
direct, move first one way then the other.
c)
alternating, move only in one direction.
d)
direct, move only in one direction.

double the distance = divide strength by 4

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.