Use the Given Data to Find the Minimum Sample Size $\hat { \mathrm { p } } \text { and } \hat { \mathrm { q } } \text { unknown }$

Multiple Choice

Use the given data to find the minimum sample size required to estimate the population proportion.
-Margin of error: 0.009; confidence level: 99%; $\hat { \mathrm { p } } \text { and } \hat { \mathrm { q } } \text { unknown }$

A) 21,442
B) 19,566
C) 20,465
D) 9642