I was using the carry ability today and 2 scenarios came up.

Scenario 1:
C
AB

B is carried by A. Can A carry B when breaking away since B is also adjacent to C?

Scenario 2:
C
BA

B is carried by A. Do both A and B have to break away? Is carrying here even possible?

Yes, no problem there. 'A' does not normally have to break away in this case (some things like the Construct Feat change this but...).

Only the carrier needs to break away (with the exption type things mentioned above)..........and yes carrying is possible.

Why would A not have to break away? Thanks for the help.

I don't get the difference between both your scenarios. They're identical other than the placement of A and B, which doesn't change anything in regards to adjacency.

Because he's not the one who is taking an action. Carry-er (taking an action) needs to break away, Carry-ie is just along for the ride.

I'm sure someone else can explain the 'hows' and the 'whys' better than myself.

Because breakaway is only required when you give a character an action. Since being carried is not an action, A does not need to breakaway.

BREAKING AWAY
If a character occupying a square adjacent
to one or more opposing characters is
given an action and attempts to move, that
character must successfully break away
before it can move, as shown in Figure 8.

Second scenario was meant to be

C
B
A

With regards to if A would have to break away to carry B.

The first line under Carry in the PAC says, "When moving as the result of being given an action..."

The character carrying is being given an action. The character being carried is not.

A is the carrier.

No. Why would they? They are not adjacent to C.

No, because A isn't adjacent to an opposing character.

A is not adjacent to an opposing figure.............no breakaway is required, even if the carry-ie is adjacent to an opposing figure.

So, to clarify scenario 2, A could carry B even if B is adjacent to C (an opposing character)?

Assuming nothing else would specific prevent B from being carried, sure, A can carry B.