Which explanation accounts for where gas planets formed? Question 2 options: Heavy

Which explanation accounts for where gas planets formed? Question 2 options: Heavy elements form in the outer regions of the disk due to the spinning protostar The inner portions of the disk are warm from the protostar making the light elements move to the outer solar system Light elements spin into the inner regions of the disk due to their mass The inner portions of the disk are cold from the protostar making the heavy elements remain there