Which of these sentences exhibits proper usage?

a. leonardo da vinci's “mona lisa” is probably the most famous painting in the world.
b. leonardo da vinci's, mona lisa, is probably the most famous painting in the world.
c. leonardo da vinci's “mona lisa” is probably the most famous painting in the world.
d. leonardo da vinci's mona lisa is probably the most famous painting in the world.

The sentence that exhibits proper usage is D. Leonardo da Vinci's Mona Lisa is probably the most famous painting in the world.

Explanation:

This sentence exhibits proper usage because Mona Lisa, that is a painting, is not between quotation marks. Titles of paintings, drawings, statutes, photographs or any other works of art should not be between quotation marks.

In any case, Mona Lisa could be italicized, like this: Leonardo da Vinci's Mona Lisa is probably the most famous painting in the world.

the culture of the americas was influenced by the language, food, and music of africa.

explanation:

your welcome : )

the process is called revolution because it was a process of great economic-social transformations that began in england in the xviii century.

the industrial mode of production spread throughout much of the northern hemisphere throughout the xix and early xx centuries.

the effect of this revolution was the distance between the countries, with respect to economic and political power.   after all, not all industrialized at the same time, remaining in the condition of suppliers of raw materials and agricultural products to the industrialized countries.

these differences mark to this day the nations of the world that are divided between developed and developing countries. one way to measure whether a country is advanced is to assess how industrialized it is.