Select the correct match for $X$ and $Y$:

Column $X$	Column $Y$
$(1)$ Thalamiflorae	$(P)$ Ovary inferior
$(2)$ Inferae	$(Q)$ Always two carpels
$(3)$ Disciflorae	$(R)$ $6$ cohorts and many families
$(4)$ Bicarpellatae	$(S)$ Citrus limon

• A
  $(1) - (R), (2) - (S), (3) - (P), (4) - (Q)$
• B
  $(1) - (R), (2) - (S), (3) - (Q), (4) - (P)$
• C
  $(1) - (R), (2) - (P), (3) - (S), (4) - (Q)$
• D
  $(1) - (S), (2) - (R), (3) - (Q), (4) - (P)$