Select the correct match for $X$ and $Y$:
Column $X$Column $Y$
$(1)$ Robert Brown$(P)$ Final shape of cell theory
$(2)$ Virchow$(Q)$ Bacterial staining method
$(3)$ Gram$(R)$ Unit membrane concept
$(4)$ Robertson$(S)$ Discovery of nucleus

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

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