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Ayan from Kendriya vidyalaya, Ramagundam

Subject :ICSO Class : Class 3

Which of the following devices is used to store information permanently?
A
B
C
D

we can delete information from pendrive then how come option C is correct.

Ans 1:

Aadhya Reddy from Pebble Creek Public School, Hyderabad

Class : Class 3