Introduction To Euclid’s Geometry

Euclid’s second axiom (as per order given in the Textbook for Class IX) is
(A) The things which are equal to the same thing are equal to one another.
(B) If equals be added to equals, the wholes are equal.
(C) If equals be subtracted from equals, the remainders are equals.
(D) Things which coincide with one another are equal to one another.