Concept:Stress marks the syllable spoken with the strongest emphasis in a word.Explanation:The word "calculation" is made up of four syllables: cal-cu-la-tion.The main stress is placed on the third syllable, "la".Thus, the stressed syllable is written in capitals as LA.This gives the correct stress pattern: cal-cu-LA-tion.Option C matches this pattern.Answer:C. cal-cu-LA-tion