Which sentence is punctuated correctly?

a.
thomas gainsborough, an eighteenth-century artist, painted the landscape "the watering place."

b.
the 1980 book "cosmos" is one of the best-known works by the astronomer carl sagan.

c.
george gershwin composed the music for the 1935 opera "porgy and bess."

d.
many people love the book the little prince, written by antoine de saint-exupéry in 1943.

honestly, school in itself just seems to be a huge waste of time. a lot of people graduate but still end up not doing anything in college anyways, which really makes the whole point of graduating seem useless. i'd rather not bring anyone's hopes up then. what i'd recommend is for whoever's reading this to simply drop out.

i mean, kanye did it. he said something along the lines of, "don't let society tell you what to do." now, he's obviously a very successful person, and since his album is called the college dropout i guess he never really had to go through all that nonsense in order to become a millionaire. the same goes for anyone else then.

in macbeth, banquo, who in real life had willing in the murder of king duncan, is portrayed as a loyal subject of the king himself. many analysts believe that shakespeare had done this in order to king james, who supposedly was a direct descendant of banquo himself.

hope this ! : )