Hi Joe,
Yes, I Do See & Have The Option Of Turning On/Off (To Sync Or Not To Sync) All Of The Categories Listed (except for the Reminders) In The Pic Of The Gmail Account Settings > Mail, Contacts, Calendars That You Have Attached In Ypur Reply To My Initial Question.
I Have Them Turned On To Sync (except for the contacts, because I Use iCloud contacts); With The Received Message Of 'Account Saved Successfully'. Then, Approximayely Two Minutes Later, I Get A Pop-Up That Says "Please Re-Enter Password"; And Upon Opening That Gmail Account,
I'm Greeted With This:
Thus, After I Re-Enter My Password, I Receive Another 'Successfully Saved' Message. Then, Approximayely Two Minutes Later, I Get This Final Pop-Up:
Now Mind You, I Was First And Only Been Requested To RE-ENTER My PASSWORD, And iPod Touch 5th Gen. iOS 9.2.1 Response Is That I Entered The Wrong Email Address, To My Gmail Account That It Singled Out.