In Which Order Do the Following Steps Typically Occur for Reactions

Multiple Choice

In which order do the following steps typically occur for reactions facilitated by heterogeneous catalysts:
I. Desorption of material
II. Adsorption on materials on catalyst surface
III. Reaction to form products
IV. Movement of bound species over catalyst surface

A) II, I, III, IV
B) II, IV, III, I
C) II, I, IV, III
D) II, III, IV, I
E) IV, II, III, I