To select drop down use following,
driver.findElements(By.className("Your dropdown class - ui-dropdown-items-wrapper")).click;
If drop down is taking time, retrieve above in web element for the click event. After that You can retrieve label value with the following syntax: //span[contains(text(), "Your key value - Weekly Review")] You can manage Key value with dynamic variable also,
Hope this will solve your problem.
To know more about Angular, I would recommend you to join Angular online course today.