When a Computed Z Value (For a Test for Differences

When a computed z value (for a test for differences between two percentages) ,4.21,is larger than the standard z value,1.96,then this amounts to:

A) support for the null hypothesis;the two percentages are different.
B) no support for the null hypothesis;the two percentages are not different.
C) support for the null hypothesis,the two percentages are not different.
D) no support for the null hypothesis;the two percentages are different.
E) None of the above;a z value is inappropriate for testing the differences between two percentages.