A Mixture Contains 5% NaCl Particles and 95% NaBr Particles

Multiple Choice

A mixture contains 5% NaCl particles and 95% NaBr particles.If 10³ particles are taken,what is the relative standard deviation for NaCl and NaBr?

A) 13.78% for NaCl 0.73% for NaBr
B) 186.2% for NaCl 9.80% for NaBr
C) 95.00% for NaCl 5.00% for NaBr
D) 54.39% for NaCl 2.86% for NaBr
E) 6) 89% for NaCl 0.36% for NaBr