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ishit from EUROSCHOOL THANE, THANE WEST
Subject :NSO    Class : Class 4

Which of the following telephone services can be used to call someone residing outside the country ?

APCO
BSTD
CISD
DBoth A & B


Can you tell the answer to this question

Ans 1:

Soham Hatua from The Hindu Senior Secondary School, Chennai
Class : Class 6
I agree.

Ans 2:

Risha Jakhotiya from Sanskriti School , Pune
Class : Class 3
the correct answer C

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