1. Only I and II
  2. Only II and III
  3. All I, II and III
  4. Only I and either II or III
  5. None of these

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Answer: Option 4

Observing I, II and III, we find that similar letters have similar code symbols at the corresponding places in the code. So, this is direct-coding. Thus, to find the code for DATE, we need the code for D which can be obtained from I only (i.e. $.) and the codes for A, T and E which can be obtained either from II or III (@, # and % respectively).

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