Match the columns based on the number of carbon atoms in the compounds involved in the Krebs cycle:

Column-$I$	Column-$II$
$(a)$ $4$ $C$ compound	$(1)$ Acetyl $CoA$
$(b)$ $2$ $C$ compound	$(2)$ Pyruvate
$(c)$ $5$ $C$ compound	$(3)$ Citric acid
$(d)$ $3$ $C$ compound	$(4)$ $\alpha$-Ketoglutaric acid
	$(5)$ Malic acid

• A
  $a-2, b-5, c-3, d-1$
• B
  $a-5, b-1, c-4, d-2$
• C
  $a-3, b-1, c-4, d-2$
• D
  $a-5, b-3, c-1, d-2$