Indefinite Demonstrative Pronouns

Question 0

Cela

Answer 0

That. May refer to something already mentioned.

Ne mangez pas cela!

Question 1

Ceci

Answer 1

This. May initiate a statement and also announce a following sentence.
Mangez ceci.
N’oubliez pas ceci: il est important de ne pas déplaire à votre patron.

Question 2

Ça

Answer 2

(This/that) familiar