Error in position of modifiers. the answer is c.
A.Actually, the pineapple was a symbol of hospitality.
B.Everything that King Midas touched turned to gold, including his food and water.
C.The farmer butchered the pig he had raised on a table behind the barn.
D.Now remembered as the architect who designed St. Paul's Cathedral, Christopher Wren was also a professor of astronomy and a mathematician.
Right.
I already answered this question.