D. Both A and B
- What computer virus holds the record for being the most widespread computer virus?
- The sun consists of _______ % mass of the solar system?
- In which year Pakistan established the Indus River System Authority?
- Which country to use China based GPS system made by BeiDou?
- Braille education system was introduced by Braille for?
- The highest award of the United Kingdom honours system is
- Small intensifiers usually have a ________ in their basic system.
- Advantages of HVDC transmission over AC system is / are____________?
- Pollution enters into the water system in ___________ ways
- When was the first electro-mechanic Computer developed?
- Realistic Education system supports the __________ progress.
- Which Planet of the solar system has Maximum number of moons?