Need help on the two case studies attached below

Red and orange? or not

Ibelieve the answer  is b.

On november 25th, beginning checking balance is $100 account credited for a deposit of $50. account has $150that same day, two checks are posted totaling $75.$150-$75 = $75will an overdraft occur if sherri's bank credits deposits before it posts checks? nowill an overdraft occur if sherri's bank posts checks before it credits deposits? no

Iwould say overhead, b/c front would shine in their face, and might mess up the picture, especially if taken by a so either front or overhead, but i'm leaning towards overhead