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Unit 2 Ch 7 : Lifelines of National Economy — Social Studies STD 10 — Question

CBSE BoardEnglish MediumSTD 10Social StudiesUnit 2 Ch 7 : Lifelines of National Economy1 Mark
MCQ
What is the full form of $\text{STD}\ ?$
  • A
    Subsidised Trunk Dialling.
  • ✓
    Subscriber Trunk Dialling.
  • C
    State Trunk Dialing.
  • D
    Subsidy Trunk Dialing.
✓

Answer

Correct option: B.
Subscriber Trunk Dialling.

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