Which part of the carrot plant is used as food?
a) Leaf
b) Root
c) Stem
d) All of the above

Hint: Carrot is available in orange and red colour. It is a biennial plant. It is widely used in many cuisines like salads and other regional cuisines.

Complete answer:
The botanical name of carrot is Daucus carota. It is a biennial plant. It can grow from seeds and can take around 3 to 4 months to mature. The optimum temperature for its growth is 16 to 21 ͦc. It grows well in loose, well drained, sandy or loamy soil.
The carrot plants are small herbs like with soft and delicate stems. It has a long tap root system which is soft, less wood and has rich deposits of sugars like glucose, fructose and sucrose. It also has deposits of other essential minerals and nutrients. The root is orange red in colour due to the presence of β-carotene. The roots are the rich source of vitamin K and vitamin B6. The leaves are eaten by some animals and are believed to be toxic for human consumption. The part of the plant mostly eaten is the root.
                                                        

Thus the correct answer is (B). The tap root is the edible part of the carrot plant.

Additional Information:
Carrots are consumed in a variety of ways. It is consumed raw in the form of salads and puree. It is widely used in making puddings and other desserts.

Note:The tap roots the mostly edible part of the plant. They are rich in β-Carotene which is beneficial for eyes. It also has rich deposits of vitamins and minerals.