Which of the following plants is a xerophyte?

A xerophyte is a species of plant that has adaptations to survive in an environment with little liquid water, such as a desert or an ice- or snow-covered region in the Alps or the Arctic. Popular examples of xerophytes are cacti, pineapple and some 'Gymnosperm' plants.

The structural features (morphology) and fundamental chemical processes (physiology) of xerophytes are variously adapted to conserve water, also common to store large quantities of water, during dry periods.

The pineapple is a perennial, monocotyledonous, xerophytic plant of herbaceous, lily-like habit, but with tough, spiny-tipped leaves that are waxy on the upper surface and possess a fragile dusty bloom on the underside.

The pineapple ('Ananas comosus') is a tropical plant with an edible fruit; it is the most economically significant plant in the family 'Bromeliaceae'. The pineapple is indigenous to South America, where it has been cultivated for many centuries. The wild plant originates from the Paraná–Paraguay River drainages between southern Brazil and Paraguay. Little is known about its domestication, but it spread as a crop throughout South America.