Which two actions do you take to make sure the newsletter is sent?

A module you are working on needs to send a newsletter to all subscribed customers at predefined intervals.
Which two actions do you take to make sure the newsletter is sent? (Choose two.)
A. Implement MyCompanyMyModuleCronNewsLetterSender::execute and register it in etc/crontab/di.xml
B. Implement MyCompanyMyModuleCronNewsLetterSender::execute and register it in etc/crontab/.xml
C. Make sure bin/magento cron:run is added to the system crontab
D. Register the plugin for MagentoCustomerModelCustomer::authenticate in etc/crontab.xml

Download Printable PDF. VALID exam to help you PASS.