A sound wave traveling through the air is composed of compressions and rarefactions. Which statement
is correct about compressions and rarefactions?
A. A compression is the part of a wave where the
particles spread apart and rarefactions is where
the particles come together.
B. A compression is the part of a wave where the
particles are pushed together and the
rarefactions is the part where the particles are
spread apart.

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.

a. are

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).