Probability density curve for 3s orbital

{:(List-I,List-II),((I)"Radial probability distribution curve of 3s orbital",(a)1.1A^(@)),((II)"Distance of maximum probability of 1s electron",(b)1s "orbital"),((III)"Radial node for a 2s electron",(c)"3peaks, 2 radial nodes"),((IV)"No spherical nodes",(d)0.53A^(@)):} The correct match is

Probability density is given by

(a) What is radial probability distribution curve ? Draw radial probability distribution curves for 1s and 2s orbitals. (b) Discuss the similarities and difference between 1s and 2s orbitals. (c ) How many nodes are present in 1s and 2s orbitals ?

" How many peaks and radial nodes are present in the radial probability curve of "3S" orbital "