Which one is called a century plant?
Agave
Agave Americana, commonly known as sentry plant, century plant or American Aloe is the species of flowering plants belonging to family Asparagaceae. It is native to Mexico, the United States in New Mexico, Arizona and Texas. Agave americana is cultivated as an ornamental plant for drought tolerant and desert style cactus gardens. So, the correct answer is 'Agave'.