Gold is not alloyed. Reason : Pure gold has a high melting point and is very soft. Thus, the ornaments made from it do not keep their shape.
(a) Both A and R are true and R is correct explanation of the Assertion.
(b) Both A and R are true but R is not the correct explanation of the Assertion.
(c) A is true but R is false.
(d) A is false but R is true