Concept:The word "rouge" ends with the consonant sound /ʒ/, and we need to choose an option with the same consonant sound.
Explanation:In "rouge", the underlined letters "ge" are pronounced as /ʒ/, a voiced "zh" sound.
"Leisure" is pronounced /ˈlɛʒə/, and it contains the same /ʒ/ sound in the middle.
"Jest" is pronounced /dʒɛst/, with a /dʒ/ sound like "j", not /ʒ/.
"Gem" is pronounced /dʒɛm/, also with a /dʒ/ sound.
"Rage" ends with /dʒ/, as in "judge", not the /ʒ/ sound.
Therefore, only "leisure" has the same consonant sound as the underlined part of "rouge".
Answer:A. leisure