Which of the following is a sign system other than ‘speech’?
I. Writing
II. Numerical method
Only I
Neither I nor II
Only II
Both I and II
Option 4 : Both I and II
Which of the following is a sign system other than ‘speech’?
I. Writing
II. Numerical method
Only I
Neither I nor II
Only II
Both I and II
Option 4 : Both I and II
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