The question is asking for a matching of soil types (List-I) with their corresponding characteristics (List-II).

List-I includes four soil types:

I. OxisOLS

II. Vertisols

III. Histosols

IV. Entisols

List-II describes the characteristics of these soil types:

1. Very rich in organic matter

2. Soil lacking horizons

3. Very old and highly weathered

4. Rich in clay content and highly basic

The correct matching is given by option 2:

Option 2:

I - 3 (OxisOLS are very old and highly weathered)

II - 4 (Vertisols are rich in clay content and highly basic)

III - 1 (Histosols are very rich in organic matter)

IV - 2 (Entisols are soil lacking horizons)

This means that OxisOLS (I) are very old and highly weathered, Vertisols (II) are rich in clay content and highly basic, Histosols (III) are very rich in organic matter, and Entisols (IV) are soil lacking horizons.

Therefore, option 2 is the correct answer.