The Chief Executive Officer of Reset Mining Ltd, a small copper mining company, provides you the Financial Statements for the financial year ended 31st March 2020. In reviewing the financial accounts, you notice the following assets have been recognized as intangibles:

1. Investment in a subsidiary company
2. Training costs associated with new digital interface
3. Cost of geographical testing in search of new copper deposits
4. Legal costs incurred in securing a mining right

Required

Determine which of these should be included as an intangible asset in the accounts of Reset Mining Ltd. Give reasons for your answers.