This was the golden age of the a cappella style. That means that singers sang without instruments. At this point in history, vocal music was still more important than instrumental music. Madrigals were popular during the Renaissance
Some navigation innovations included the astrolabe to determine latitude and the use of the compass to determine directions. A major development in the ships used was the triangular sail
It is definetly c. I think the question is should be conservation in America.
Because conservation generally talks about biodiversity,Environmental and natural resources