Concept:Arranging jumbled parts of a sentence using comparison and conjunctions.
Explanation:The phrase "Bold rocks near at hand" is given.
Part R introduces comparison with "are more inspiring".
Part Q follows with "than distant Alps".
Part S adds another element using "and the thick fern upon a heath".
Part P completes the idea: "makes a fine forest for the imagination".
Thus, the correct order is R, Q, S, P.
Answer:Option (c) RQSP.