$IR-36$ was developed through the breeding of:

• A
  Six rice varieties and $Oryza \text{ } nivara$
• B
  $13$ rice varieties and $Oryza \text{ } nivara$
• C
  $Oryza \text{ } sativa$ and $O. \text{ } indica$
• D
  $Oryza \text{ } indica$ and $O. \text{ } nivara$