1 : Sugar P : and our average consumption of sugar Q : provides something like R : itself is rich in calories S : one-fifth of our 6 : total calorie intake The Proper sequence should be:

The correct answer is D. RPSQ.

Sugar itself is rich in calories, and our average consumption of sugar provides something like one-fifth of our total calorie intake.

Option A, PQRS, is incorrect because the sentence does not make sense if “sugar” is placed at the beginning.

Option B, QRPS, is incorrect because the sentence does not make sense if “provides something like one-fifth of our total calorie intake” is placed at the beginning.

Option C, RPQS, is incorrect because the sentence does not make sense if “our average consumption of sugar” is placed at the beginning.