Which of the following statements/features are correct? Choose correct option: a. The stamens are united into one bundle (monoadelphous) in Pea. b. The stamens are united into two bundles (diadelphous) in Citrus. c. The stamens are united into more than two bundles (polyadelphous) in China rose. d. When stamens are attached to the petals, they are called epipetalous, as in brinjal. e. When stamens are attached to the perianth, they are called epiphyllous, as in lily.