Match the following columns:
Column-$I$Column-$II$
$1.$ Mycorrhiza$a.$ Free-living $N_2$-fixer
$2.$ Nostoc$b.$ Phosphorus absorption
$3.$ Azospirillum$c.$ Leguminous plants
$4.$ Rhizobium$d.$ Autotrophic $N_2$-fixer

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

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