The correct answer to this open question is the following.
You forgot to include the options for this question. However, we can say the following.
The central idea of "Lake Titicaca" by Michael Angel Asturias is this one: "Titicaca is a place of great spiritual power that inspires a sense of connection between the individual, nature, and the past."
And this is so true. Many historians, archeologists, and scholars that had visited the place agree with the idea that Lake Titicaca is a mystical lake and a prominent place for South American people who respect the traditions of their ancestors.
Lake Titicaca is located in Peru and Bolivia, in the Andes Mountains. For this reason, it is the highest on planet Earth. For the Bolivian and Peruvian people, the lake is a spiritual place and the creation stories of their ancestors refer that the world began in Lake Titicaca.