None of those. To get the apk file to share you need to backup the app.
To do that, follow the instructions below.
1. Tap the app you wish to backup
2. Tap Tools, then "Backup" then "Backup .apk file"
3.
Lucky Patcher will now backup the apk file to this location "Android/data" in the folder "com.android.vending.billing.InAppBilling.COIN" then "files" then "LuckyPatcher" then "Backup"
4. Your file will be in there. From there you can upload it to usersdownload or move it to your PC then upload it.
Also remember that if the app needs an obb file to run, you will need to upload that as well.
If you need anymore help, just let me know.