Concept:Spelling of the word "Quantitative" follows the standard English pattern for words ending in "-tive".Explanation:Check each option for correct letter sequence.Option A: "Quantetative" has an extra "e" after "t".Option B: "Quantitativ" misses the final "e".Option C: "Quantitetive" uses "te" incorrectly.Option D: "Quantitative" is the only one with correct spelling: Q-u-a-n-t-i-t-a-t-i-v-e.Its meaning: relating to measurement of quantity or amount.Answer:D. Quantitative