For the same sample​ statistics, which level of confidence would produce the widest confidence​ interval? Explain your reasoning.

A. ​99%, because as the level of confidence​ increases, z decreases.​
B. 90%, because as the level of confidence​ decreases, z decreases.
C. ​99%, because as the level of confidence​ increases, z increases.​
D. 90%, because as the level of confidence​ decreases, z increases.