Arrange in hierarchical order by date the following inven...
Arrange in hierarchical order by date the following inventions:
I. - Census machine; Il. - Abacus; lll. - Slide rule; IV.- Difference engine.
I, lI, IlI and IV
I, IlI, II and IV
I, II, IV and llI
I, IV, IlI and l
Correct answer is A
No explanation has been provided for this answer.
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