Answer:
The features enhancing illusionism of the ceiling painting Triumph of the Name of Jesus by Giovanni Battista Gaulli are:
c. His distinctive use of light and assertive brushwork.
Step-by-step explanation:
Giovanni Battista GaulliĀ“s presented one of his greatest breakthrough painting work with the Triumph of the Name of Jesus enhancing dramatic illusionism in a three dimensional frame adding fortress stucco molding around the fresco which highlights the upward and downward movement of the souls scrolling vertically and horizontally over the viewers upward into the endless heaven providing depth past the actual ceiling.
The illusion of the scene is emphasized as viewer can not tell where the fresco ends and the stucco molding begins.