What effect do you think new, massive structures, especially churches, had on the size and subject matter of artwork, commissioned to fill them

Churches greatly effected the size and subject matter of artwork. This is because many large structures created more room to put larger artwork in. This includes murals, which have become very common in churches and historical large buildings. Much of the artwork in these buildings show historical events and religious beliefs.

Hey user  he  bachs contributions to the baroque period were bassed of keyed instruments 

The answer is d