In maize coloured endosperm (C ) is dominant over colourless (c ) and full endosperm (R ) is dominant over shrunken (r ). When a dihybrid of `F_(1)` generation was test crossed it produced four phenotypes in the following percentage `{:("Coloured and Full",=50%),("Colourless - Full",=5%),("Colourless - Full",=4%),("Colourless - shrunken",=46%):}`
From these data what would be distance between the two non allelic genes :-

Options

A. 48 unit
B. 9 unit
C. 4 unit
D. 12 unit

Answer

B