A company has 1000 employees, of whom 58% are men and 42% are women. The research department at the company wanted to conduct a quick survey by selecting a sample of 100 employees and asking them about their opinions on an issue. They divided the population of employees into two groups, men and women, and then selected 58 men and 42 women from these respective groups.

Which type of sample was used?

Simple random sample

Stratified random sample

Quota sample

Convenience sample

Systematic random sample