The Sikkim Regulation of Transfer of Land Act aims to:

Restrict land sales to non-Sikkimese
Promote land consolidation
Encourage commercial development
Facilitate land distribution to the landless

The correct answer is: a) Restrict land sales to non-Sikkimese.

The Sikkim Regulation of Transfer of Land Act, 1972, is an act of the Government of Sikkim that regulates the transfer of land in the state. The act aims to protect the interests of the indigenous people of Sikkim by restricting the sale of land to non-Sikkimese. The act also provides for the establishment of a Land Tribunal to adjudicate disputes relating to land transfer.

The act has been criticized by some for being discriminatory against non-Sikkimese. However, the government of Sikkim has defended the act, arguing that it is necessary to protect the interests of the indigenous people of the state.

The following are the possible answers to the question:

a) Restrict land sales to non-Sikkimese: This is the correct answer. The act aims to protect the interests of the indigenous people of Sikkim by restricting the sale of land to non-Sikkimese.
b) Promote land consolidation: This is not the correct answer. The act does not promote land consolidation.
c) Encourage commercial development: This is not the correct answer. The act does not encourage commercial development.
d) Facilitate land distribution to the landless: This is not the correct answer. The act does not facilitate land distribution to the landless.