The correct option is C Loamy and clayey
Loamy soil is made up both smaller and larger particles are of equal amount i.e., sand and clay. It is considered best soil for plant growth. The clayey soil is made up of very fine particles. They, both are packed very closely and tiny gaps are present in between the soil particles. So, they have the high capacity to hold water. So both together forms the best soil for retaining water and helps in plant growth. Thus, the correct answer is C.