An Euclidean ring (domain)

 Qn 1 :

 An Euclidean ring must possess ................ element.

a) Unity
 b) Unit

 Qn 2 :

An Euclidean ring must possess ................
a) Unity
 b) Unit .

Answer by Prof. Suresh:

Qn 1 - b 

Qn 2 - a
unity = unit element = multiplicative identity.

Note:
Unit means multiplicative inverse.

Unity element - meaningless.
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