TL431A: Stability Boundary Conditions on the datasheet P16

Part Number:TL431A

Hi all

Would you mind if we ask TL431A?

Is "Figure16. Stability Boundary Conditions" on the datasheet P16 with ceramic cap or aluminum cap?
We would like to know the effect of ESR.
Does ESR(cap type) affect stablity?

Kind regards,

Hirotaka Matsumoto