Concept:
The effect of poisons on the human body depends on multiple physiological, chemical, and environmental factors.
Step 1: Dose and form (A).
The quantity and physical form (solid, liquid, gas) of poison determine absorption rate and toxicity.
Thus, A is correct.
Step 2: Hypersensitivity and Allergy (B).
Some individuals show exaggerated responses due to immune sensitivity, even at low doses.
Thus, B is correct.
Step 3: Incompatible combination (C).
Certain poisons interact with other substances, altering toxicity (synergistic or antagonistic effects).
Thus, C is correct.
Step 4: Tolerance and cumulative action (D).
Repeated exposure can lead to tolerance or accumulation in the body, modifying toxic effects.
Thus, D is correct.
Step 5: Health and age (E).
Children, elderly, or diseased individuals respond differently due to metabolism and immunity.
Thus, E is correct.
Step 6: Final evaluation.
All listed factors influence poison effects.
Final Conclusion:
Hence, the correct answer is option (4).