Order of rings: TIFR GS 2018 Part B Problem 12

Order of rings: TIFR GS 2018 Part B Problem 12

Understand the problem The number of rings of order 4, up to isomorphism, is:(a) 1(b) 2(c) 3(d) 4. Source of the problem TIFR GS 2018 Part B Problem 12 Topic Abstract Algebra Difficulty Level Easy Suggested Book Dummit and Foote Start with hints Hint 0Hint 1Hint 2Hint...