1.

Match the earliest references of various techniques given in the List - I with that of its source given in the List - II and select the correct answer from the code given below:List - I(Technique)List - II(Source)a) First mention of spinning wheel in Indiai) Sirat i Firuzshahib) Soap manufactureii) Thevenotc) Cylinder and piston syringeiii) Isamid) Grooved screw as metal attachmentiv) Monserrate

A. a-ii, b-i, c-iv, d-iii
B. a-iii, b-iv, c-i, d-ii
C. a-iv, b-iii, c-ii, d-i
D. a-iii, b-i, c-iv, d-ii
Answer» D. a-iii, b-i, c-iv, d-ii


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