Step 1: Understanding the Question:
This question tests knowledge of plant adaptations to water availability.
Step 2: Detailed Explanation:
Phreatophytic plants are adapted to grow in habitats with high water availability.
They have deep root systems to access groundwater.
Hydrophilic (A): Not a standard term.
Waterloggers (B): Not a standard term.
Aquatic (D): Plants growing in water.
Thus, the correct answer is phreatophytic.
Step 3: Final Answer:
Thus, plants adapted to high water availability are phreatophytic, which corresponds to option (C).
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