In Chara, the male sex organ is the globule (antheridium).The female sex organ is the nucule (oogonium).Both structures are generally present on the same plant.The nucule (oogonium) is normally borne above the globule (antheridium).Hence, option A is correct and option C gives the reverse, incorrect arrangement.Option B is correct because globule and nucule occur on the same plant.Option D is correct because globule is the male reproductive structure.Therefore, the wrong statement about Chara is option C.
