In general If villain leaves room in his stack to fold he is less likely to be bluffing than if villain leaves no room to fold?

Examples: 100bb stacks, for simplicity this is 2 handed.

A) Hero raises 4bb Villain raises to 13bb, Hero calls

Flop (26bb) XXX
Villain bets 15bb, Hero Calls.

Turn (56bb) X
Villain bets 45bb (27bb left)

B) Hero raises 4bb Villain raises to 13bb, Hero calls

Flop (26bb) XXX
Villain bets 15bb, Hero Calls.

Turn (56bb) X
Villain bets 28bb (44bb left)

In General Villain in Example A is more likely to be bluffing?