Outlook on the Web in Exchange Server $2016$ supports the caching of content on the client computer for offline access. How much is cached by default?

Question $3$ options:

One day of emails $($up to $200$ emails in total$)$

One day of emails $($up to $150$ emails in total$)$

One day of emails $($up to $100$ emails in total$)$

Three days of emails $($up to $150$ emails in total