Match List-I with List-II and select the correct answer using the codes given below the Lists

Agent | Disease
(A) Arsenic | 1. Fluorosis
(B) Fluoride | 2. Melanosis
(C) Dust | 3. Presbycusis
(D) Noise | 4. Silicosis

The correct answer is Option 3 (A-2, B-1, C-4, D-3). This matching correctly aligns environmental pollutants with their specific physiological impacts.

• (A) Arsenic - 2. Melanosis: Chronic arsenic poisoning (arsenicosis) primarily manifests as skin lesions, including hyperpigmentation or Melanosis and keratosis.
• (B) Fluoride - 1. Fluorosis: High intake of fluoride through water leads to Fluorosis, affecting teeth (mottling) and bones (skeletal fluorosis).
• (C) Dust - 4. Silicosis: Prolonged inhalation of crystalline silica dust causes Silicosis, a debilitating occupational lung disease common in mining and construction.
• (D) Noise - 3. Presbycusis: While Presbycusis is generally age-related hearing loss, it is categorized under noise-related auditory degradation in this context, as chronic noise exposure exacerbates sensorineural hearing impairment.

Options 1, 2, and 4 are incorrect because they mismatch these established medical and environmental correlations, such as incorrectly linking Arsenic to hearing loss or Fluoride to lung disease.