What do the dots on the page above refer to?

What symbolism does da vinci use in his representation of the last supper? a. a triangle shaped light over the head of jesus b. the shape of jesus resembles a triangle c. jesus’ hands create a triangle as he reaches for the bread. d. all of the above

Explain briefly why it's to choose a chord progression before developing the harmony.

What is english artist and critic roger fry famous for?