The correct answer is - D. Guatemala.
Guatemala is the country that has the largest proportion of Maya people in its population. The reason for this is that Guatemala was the homeland of the Maya people, and also the European influences were not as heavy and harsh as in Mexico, where the Maya people in the southern part of the country mostly got assimilated.
39.6% of the population in Guatemala is actually with Maya origin. There's 23 different groups of Maya people in the country, with the K'iche, Kaqchikel, Mam, and Q'eqchi' being the most numerous ones.
