If x% of a is the same as y% of b, then z% of b is

1. $$\cfrac{xy}{z} \%$$ of a
2. $$\cfrac{yz}{x} \%$$ of a
3. $$\cfrac{xz}{y} \%$$ of a
4. $$xyz \%$$

A

1

B

2

C

3

D

4