Arrange in a hierarchical order by date; the following inventions:

 I. slide rule; Il. pascaline; IIl, analytical engine; v. difference engine.

A. I, lI, IV and ll
B. II, IV, and Il
C. III, IV, II and I
D. I, II, IIl and IV.

Correct Answer:

Option A = I, lI, IV and ll