| $A. +/+$ | $I. \text{परभक्षण (Predation)}$ |
| $B. -/-$ | $II. \text{अमेंसलिज्म (Ammensalism)}$ |
| $C. +/-$ | $III. \text{स्पर्धा (Competition)}$ |
| $D. -/0$ | $IV. \text{सहजीविता (Mutualism)}$ |
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