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Subject :ICSO    Class : Class 3

I am a device like a mouse. Instead of having a ball at the bottom, I have a ball at the top.
A
B
C
D


b is correct

Ans 1:

Class : Class 3
Is it C or D? I had selected C. My ICT teacher never told me about the light pen.

Ans 2:

Class : Class 4

Ans 3:

Class : Class 4
c is more appropriate answer

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