✅ Correct Answer: (B) C' = 5C

Step 1 — Volume Conservation:
Total volume of 125 small drops = Volume of big drop

125 × (4/3)πr³ = (4/3)πR³
R³ = 125r³
R = 5r

Step 2 — Capacitance of a Sphere:
<b>Capacitance ∝ Radius</b> → C = 4πε₀r

Step 3 — Find C':
C' = 4πε₀R = 4πε₀(5r) = 5 × (4πε₀r) = 5C

∴ <b>C' = 5C</b>