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Pneumatophores Occur in (1) Carnivorous Plants (2) Free-Floating Hydrophytes (3) Halophytes (4) Submerged Hydrophytes

Answer: (3) Halophytes

Explanation: Salt-resistant plants are known as halophytes. They are salt-tolerant plants with a greater osmotic pressure that thrive in high-salinity environments and can endure higher salt concentrations. Seashores and wetlands are teeming with halophytes. 

Pneumatophores are respiratory roots found in halophytes like mangrove trees. Because halophytes thrive in salty marshes, their breathing roots emerge from the water to take oxygen. It also emits too much Carbon dioxide. Lenticels are microscopic pores that allow this to happen.