Arrange the stages of root nodule formation in the correct sequence:
$I-$ Infection thread is produced.
$II-$ Bacteria are carried to the cortex of the root.
$III-$ Bacteria attach to the root hair.
$IV-$ Bacteria are released from the thread into the cells.
$V-$ Differentiation into nitrogen-fixing cells occurs.

• A
  $III \rightarrow II \rightarrow I \rightarrow IV \rightarrow V$
• B
  $III \rightarrow II \rightarrow I \rightarrow V \rightarrow IV$
• C
  $III \rightarrow I \rightarrow II \rightarrow IV \rightarrow V$
• D
  $III \rightarrow I \rightarrow II \rightarrow V \rightarrow IV$