Uguys on r smart, me out (will be marking brainliest)
the part of a soil profile that is made up of partly weathered rock is the:

bedrock
subsoil
regolith
topsoil

it's the regolithhope this helps you

C Horizon - Also called regolith: the layer beneath the B Horizon and above the R Horizon. It consists of slightly broken-up bedrock. Plant roots do not penetrate into this layer; very little organic material is found in this layer. R Horizon - The unweathered rock (bedrock) layer that is beneath all the other layers.