Which model of the solar system best supports retrograde motion of the planets?

a) ptolemy's model

b) the heliocentric model

c) an earth-centered model

its heliocentric

Explanation:

got it right on my test

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.

if they have a finite resultant