Guillaume de machaut was appointed a canon at rheims, meaning he

Guillaume de Machaut an old-fashioned French poet and composer during the 14th century. He is considered as the excellent and most significant composer because of his Excellency. He was appointed a canon at Rheims, which means he participated and joined the staffs of the local cathedral.

b. africa to the americas

explanation:

c. troops marched forward in close formation against newer, more accurate weapons