Read the passage and answer the question :

Charkha

Mahatma Gandhi was profoundly critical of the modern age in which machines enslaved humans and displaced labour. He saw the charkha as a symbol of a human society that would not glorify machines and technology. The spinning wheel, moreover, could provide the poor with supplementary income and make them self-reliant.

What I object to, is the craze for machinery as such. The craze is for what they call labour-saving machinery. Men go on "saving labour", till thousands are without work and thrown on the open streets to die of starvation. I want to save time and labour, not for a fraction of mankind, but for all; I want the concentration of wealth, not in the hands of few, but in the hands of all.

YOUNG INDIA, 13 NOVEMBER 1924

Khaddar does not seek to destroy all machinery but it does regulate its use and check its weedy growth. It uses machinery for the service of the poorest in their own cottages. The wheel is itself an exquisite piece of machinery.

YOUNG INDIA, 17 MARCH 1927

___________ is itself an exquisite piece of machinery.

Wheel

The correct answer is Option (1) → Wheel

The reason the answer is (1) Wheel is that the passage talks about the charkha, which is a spinning wheel. Mahatma Gandhi saw the charkha as a symbol of human society that doesn't glorify machines and technology. He mentioned that the wheel, which refers to the charkha, is an exquisite piece of machinery. Hence, the term "wheel" is the appropriate answer.