Match List-I with List-II and select the correct answer using the codes given the lists.
| List-I | List-II |
|---|---|
| I. Uncertain liability | (a) Amortisation |
| II. Expiry of tangible asset | (b) Long-term liability |
| III. Basis for all valuations in the balance sheet | (c) Research and development |
| IV. Accounting standard-As-$8$ | (d) Estimated obligation |
| (e) Conservation convention |