Which of the following plant hormones is/are activated in leaves by the process of vernalisation?

Vernalisation is the acquisition of a plant's ability to flower or germinate in the spring by exposure to the prolonged cold of winter. Vernalisation activates a plant hormone called florigen present in the leaves, which induces flowering at the end of the chilling treatment. Florigen or flowering hormone is the hypothesised hormone-like molecules responsible for controlling and/or triggering flowering in plants. Florigen is produced in the leaves and acts in the shoot apical meristem of buds and growing tips.