The flutes of flute seller was conpared with guills of porcupine (a animal with thorns at his back) because the flutes are spreaded over in all directions and seems like the thorns of the porcupine which are also spread over in all the directions

Introduction:
In the given question, the flutes on the pole of a fruit seller are compared to various objects. We need to identify the correct comparison and explain it in detail.

Explanation:
The correct answer is option 'C' which states that the flutes on the pole of a fruit seller are compared to the quills of a porcupine. Let's understand why this comparison is appropriate.

Flutes on the pole:
The "flutes" mentioned in the question refer to the long and slender bamboo sticks that are attached to the pole of a fruit seller's cart. These flutes are used to hold and display the fruits for sale.

Quills of a porcupine:
The "quills" of a porcupine are its sharp and needle-like spines that cover its body. These quills serve as a defense mechanism for the porcupine as they can be easily raised and released when the animal is threatened. The quills have barbs on the end that make them stick into the skin of predators, causing pain and discomfort.

Comparison:
The comparison between the flutes on the pole of a fruit seller and the quills of a porcupine can be justified based on their similarity in appearance and function.

Similar appearance:
Both the flutes and the quills are long, slender, and have a similar shape. The flutes are attached to the pole in a row, just like the quills are arranged on the porcupine's body.

Similar function:
The flutes on the fruit seller's pole serve the purpose of holding and displaying the fruits. Similarly, the quills of a porcupine serve the purpose of defense and protection. Both these structures fulfill a specific function and are essential for their respective purposes.

Conclusion:
In conclusion, the comparison of the flutes on the pole of a fruit seller to the quills of a porcupine is appropriate because of their similarity in appearance and function. The flutes, like the quills, are long and slender, and they serve the purpose of holding and displaying the fruits.