The correct option is D Hibiscus
When all the petals are free it is called as polypetalous. In twisted aestivation, one part of a petal covers adjacent petals and the other part is covered by posterior petal. One margin of the petal overlaps that of the next one and the other margin is overlapped by the third one. e.g., Cotton, Ladyfinger, China rose. In monadelphous, all the filaments are united into a single bundle but anthers are free from each other. In this type of cohesion, a tube is formed around the gynoecium which is called as staminal tube e.g., Cotton, Hollyhock, Ladyfinger. Hibiscus has all of the above characteristics. Hence, the correct answer is the option D.