Which sentence is punctuated correctly?

a.
discovered in 1820 on the island of milos, the statue "venus de milo" is on permanent display at the louvre.

b.
the first aircraft carrier of the u. s. navy was called langley.

c.
ernest lawrence thayer's "casey at the bat" is a humorous poem about baseball.

d.
have you ever read the story rip van winkle by washington irving?

the unsaturated fatty acid is a fat consist of one or more double bond in the fatty acid chain. if it contains one double bond then called as monounsaturated fatty acid however if, it contains more than one bonds called as a polyunsaturated fatty acid. true fatty acids are called unsaturated fatty acids as it reduces the risk of high blood cholesterol and good for health.

the writer needs to avoid using abbreviations and check spelling before sharing.