P: The taxonomic hierarchy for Brassica campestris can be written as.
Plantae → Phanerogamae → Angiospermae → Dicotyledonae → Parietales → Brassicaceae → Brassica → campestris.
Q: Tautonym is the taxonomic designation used for certain plants having trinomial nomenclature.
R: A character present in an ancestral species and shares exclusively by its evolutionary descendants is referred to as synapomorphy.
S: Family Fabaceae is divided into three sub-families, i.e., Leguminosae, Mimosaceae and Caesalpiniaceae.
Which of the following combinations of given statements is correct?