Primary school enrollment in Sikkim is:

The correct answer is: b) Close to universal.

Sikkim has a primary school enrollment rate of 99.2%, which is very close to the universal enrollment rate of 100%. This means that almost all children in Sikkim are enrolled in primary school. The enrollment rate is higher for girls than boys, and there is no significant difference in enrollment rates between urban and rural areas.

Here is a brief explanation of each option:

• Option a) is incorrect because the primary school enrollment rate in Sikkim is not very low. It is actually very close to universal.
• Option b) is the correct answer because the primary school enrollment rate in Sikkim is close to universal.
• Option c) is incorrect because the primary school enrollment rate for boys and girls in Sikkim is almost the same.
• Option d) is incorrect because there is no significant difference in enrollment rates between urban and rural areas in Sikkim.