Different plants have different edible parts as shown in the classification chart. Which one of the following can be a, b, c and d ?
--------a--------------b---------------c-----------d
AOnion------Ginger ------Cabbage------Carrot
BCarrot------Turmeric ---Broccoli------Coconut
CTurnip------Radish------Cauliflower---Potato
DRadish------Onion ------Cabbage------Ginger
b