The correct answer is: b) Extinction.
Many smaller languages and dialects in Meghalaya are at risk of extinction. This is because they are spoken by a small number of people, and these people are often moving to urban areas where they are more likely to speak the dominant language. As a result, the smaller languages are not being passed down to the next generation, and they are slowly dying out.
Option a) is incorrect because there is no proposal to declare any of the smaller languages in Meghalaya as official languages.
Option c) is incorrect because the government does not provide much support to the smaller languages in Meghalaya.
Option d) is incorrect because the smaller languages in Meghalaya are not merging into larger languages. They are simply dying out.