Concept:The parts of the sentence must be arranged in a logical order to form a meaningful statement about Newton's discovery.
Explanation:The opening clause “Newton discovered that” needs to be followed by the main action.
Part R (“the apple falls”) introduces the subject and the verb, making it the natural first part.
Part S (“on the ground”) indicates the destination, so it comes next.
Part P (“due to the gravitational pull”) gives the reason for the fall and follows logically after stating where the apple falls.
Part Q (“of the earth”) completes the reason by specifying whose gravitational pull, so it comes last.
Thus, the correct order is R → S → P → Q.
Answer:The correct sequence is RSPQ, which corresponds to option B.