You're asking how options work? They're American in style and the day you're issued them you're free to send the company a cheque for shares at 10c for every option you hold.
Some will hold until the 5 year mark, choosing to not commit the 10c until the last moment. Others are likely to exercise almost immediately when the shares trade above 10c and sell the new shares for whatever profit they can get ASAP.
As these options are expected to trade on the ASX later this year you can also sell them on market in the same way as shares.
Given the volume that will be on issue I'd expect to see a combination of on market sales and early exercises but we'll likely see outstanding options existing right through until the expiry date
BAT Price at posting:
5.6¢ Sentiment: Buy Disclosure: Held