Final answer:
The appropriate form of address in this correspondence is 'The Honourable Mr Justice of the High Court'.
Step-by-step explanation:
When writing a letter to the presiding officer of the High Court, Judge Dlamini, the appropriate form of address would be c) The Honourable Mr Justice of the High Court. This form of address is commonly used to show respect and honor to judges in formal correspondence. It recognizes the judge's position as a justice of the High Court.
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