Read the passage from Sugar Changed the World. A fire was lit in a giant iron cauldron, and the certificates of 2,300 Indians were tossed into the flames—the first major act of Satyagraha. "I am not property," the Indians were showing. "I am not your victim," they were demonstrating. "I have the power of my conscience," they were proving. The quiet strength of the Indian community shook the South African government. And by June 1914 it gave in; the Black Act was taken off the books. The Indians had insisted that they were not mere workers but were citizens—and finally the government could not resist.

What evidence do the authors include to support the central idea of this passage?

The burning of certificates and the repeal of the Black Act show that the Indians reclaimed their power.
The Black Act shows that the South African government saw the Indians as property.
The burning of certificates and the act of Satyagraha show how the Indians had to comply with the Black Act.
The presence of 2,300 Indians shows that the community in South Africa was large enough to revolt.

The evidence the authors include to support the central idea of the passage is:

A. The burning of certificates and the repeal of the Black Act show that the Indians reclaimed their power.

1. the burning of the certificates by the Indian community and

2. the repeal (cancellation) of the Black Act.

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The burning of certificates and the repeal of the Black Act show that the Indians reclaimed their power.

Explanation:

The given passage concerns about the Black Act that was passed in South Africa specifically for Asians (Indian and Chinese to be precise). The Black Act required all male members of the society to produce for themselves and his family a certificate of identity. This act was revolted by Gandhi through Satyagraha.

The central idea of the passage is how Indians act of resistance helped them  to reclaim their power. And to support this central idea the author included the burning of certificates (of identity) and resistance by Indians as an evidence to show that Indians reclaimed their power.

Thus the correct answer is the first option.  

the answer is b just took the tested