Concept:Rhyming words share the same ending vowel and consonant sound.Explanation:The given word is "tern".It is pronounced like "turn", with the ending sound /ɜːn/.Check each option:• "fan" ends with /æn/.• "birth" ends with /ɜːθ/.• "earn" is pronounced /ɜːn/, matching "tern".• "born" ends with /ɔːn/.So the word that rhymes with "tern" is "earn".Answer:C. earn