Concept:The word "catastrophic" carries the primary stress on its third syllable.Explanation:Divide the word into syllables: ca-ta-stro-phic.The strongest stress falls on "stro", not on the first, second, or last syllable.So the correct pronunciation pattern is ca-ta-STRO-phic.The option that shows "STRO" in capital letters matches this stress pattern.Answer:C. ca-ta-STRO-phic