alleryWhich mail became the choice for intercontinental delivery?
ARail mail
BRoad mail
CSea mail
DAir mail
Answer & Solution
Correct answer: D. Air mail
1. Railways carried railway post offices.
2. In the 20th century air mail became the choice for inter-continental mail.
3. Sea, rail and road mail are slower.
_Source: Wikipedia, Mail: Modern transport and technology_
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