El maiz es muy importante en Mexico. Maiz means corn in English. Corn is very important to Mexicans not because it is a root crop available but because it has a deep cultural symbol that started about ten thousand years ago.
The answer would be choice C. en Mexico.
The correct answer is the first option "Visitando"
Nosotros miramos
Tu miras
Vosotros miràis
Usted/él/ella mira
Ustedes/ellas/ellos/ miran