Concept:The underlined letter h in heavy is pronounced as the consonant sound /h/.Explanation:The word heavy is pronounced /’hevi/, so its initial sound is /h/.Check each option:• A. honour is pronounced /ˈɒnə/ — the h is silent.• B. heir is pronounced /ϵr/ — the h is silent.• C. beehive is pronounced /’bi:,haiv/ — the second part hive has the clear /h/ sound.• D. when is pronounced ϵnw — it has a /w/ sound, not /h/.Therefore, only beehive contains the same consonant sound /h/ as in heavy.Answer:C. beehive