Prayer, holy water, priesthood. Not really an "invention"
The music and art of the renaissance era were connected through religion. Most of the art was painted/sculpted for cathedrals and whatnot, showing different scenes and events that had happened in the bible, and much of the music was about god and his blessings or whatever. So, yes, the music of the period is reflected through the art because they are both about God/religion.
Because Village green is a very common open area within the village or other settlement
Many schools, yards, churches , and other public property were built within the area
C. should be your answer
What do you mean opportunity cost is the next best thing you lose out on like for example if you got a chose to buy cheap car oil verse expensive oil if you chose the expansive one you lose on a cheaper price if you would of chose the cheap one but if you chose the cheap one you lose out on a better quality <span />
