Which answer shows proper comma usage?
sentence: the first spanish viceroy of mexico antonio de mendoza was appointed in 1535.
a)the first spanish viceroy, of mexico, antonio de mendoza, was appointed in 1535.
b)the first spanish viceroy of mexico, antonio de mendoza, was appointed in 1535.
c)the first spanish viceroy of mexico, antonio de mendoza was appointed in 1535.
d)the first spanish viceroy of mexico antonio de mendoza, was appointed in 1535.

d)The first Spanish viceroy of Mexico Antonio de Mendoza, was appointed in 1535.

c. is the answer to your question.

explanation:

there is a sequence and logical steps to give an answer of a trouble.

1) strategy is necessary to develop an project idea.

2) to study and know the environment where you are going to work ( ecosystem).

3)   the materials resources to built the ideas.

4) to give a priority order in the context that you study. in this case human needs.