Three key duties that must always be separated under a good system of internal controls are:

A. record keeping, transaction analysis and transaction approval.
B. asset handling, hiring and safeguarding of assets.
C. asset handling, record keeping and transaction approval.
D. asset handling, recordkeeping and safeguarding of assets.

. asset handling, record keeping and transaction approvalC

Explanation:

Internal controls are a company's or business's policies which are  put together and acts as checks in terms of business transactions,  protection of assets, good accounting practices so as  to  maximize the efficiency and increase productivity of its operation and the same time creating  atmosphere of compliant employees.  The three key duties are

Asset handling or management:  This refers to a systematic approach to the management of value from the investment of a business.

Record keeping: The act of keeping business records  for reference and for tax purposes. This also helps to monitor the financial status of the company.

transaction approval: For every business transaction, there must be an approval. Every business must scrutiny analyse every business transaction before approval to avoid problems arising from wrong business transaction eg fraud.

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