To match the terms in List I with their correct units from List II, we need to understand the basic definitions and units associated with each term.

1. Power: Power is defined as the rate at which work is done or energy is transferred. The standard unit of power is the Watt (W). 
   Hence, Power – Watts (II).
2. Gain: Gain in the context of electronics, often particularly in antennas and sound systems, is measured in decibels. The gain relative to an isotropic antenna is measured in dBi. 
   Hence, Gain – dBi (I).
3. Resistance: Resistance is a measure of the opposition to the flow of electric current. The unit of electrical resistance is the Ohm (Ω). 
   Hence, Resistance – Ohm (IV).
4. Inductance: Inductance is the property of an electrical conductor by which a change in current in the conductor creates an electromotive force. The standard unit of inductance is the Henry (H). 
   Hence, Inductance – Henry (III).

Combining these observations, we can match each term in List I with its appropriate unit in List II:

A-II: Power - Watts

B-I: Gain - dBi

C-IV: Resistance - Ohm

D-III: Inductance - Henry

The correct answer is A-II, B-I, C-IV, D-III, which corresponds to the given option:

A-II, B-I, C-IV, D-III