Phosphorus is major constituent of

$(1)$ Biological membranes

$(2)$ Nucleic acid

$(3)$ Cellular energy transfer system

$(4)$ Protein synthesis

  • A

    All given

  • B

    Both $1$ and $2$

  • C

    $2, 3$ and $4$

  • D

    $1, 2$ and $3$

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