Concept:Nouns have masculine and feminine forms. The word 'duck' is feminine and its masculine gender is an irregular form.Explanation:A duck is a female waterbird. The male duck is called a 'drake'.The other options are for different animals: 'gander' is the male of goose, 'doe' is the female of deer (buck), and 'drone' is a male bee or an unmanned aircraft.Only 'drake' correctly indicates the masculine gender of duck.For example: "The drake has brighter feathers than the duck."Answer:Option B. Drake