Concept:The underlined letters "pp" in "supper" are pronounced with the consonant sound /p/.Explanation:In "supper", the double "p" gives a single /p/ sound.Option A: "psychic" has a silent "p", so "ps" is pronounced as /s/.Option B: "elephant" has "ph" pronounced as /f/.Option C: "trip" ends with the letter "p", which is pronounced as /p/.Option D: "psalm" has a silent "p", so "ps" is pronounced as /s/.Therefore, the word that shares the same consonant sound /p/ is "trip".Answer:C. trip