The correct answer should be d.Velázquez captured many middle tones between dark and light to create structure and accentuate color..
This is based on the fact that he was able to create an atmosphere of there being natural light coming in from the windows.
Answer
the organ is baroque
(I'll update as I find what the potential answers are)
The Greeks started making the Columns while building temples. They started with the Doric, then advanced to the Ionic and later the Corinthian Columns. These architectural designs are used widely today in the construction of storey buildings and other sructures.
The answer to the question is beat.