Which of the following sentences is punctuated correctly?
a.
the tiny golden clasp on the dress an antique from the 1920s refused to be unhinged (from its hook).
b.
c.
the tiny golden clasp on the dress-an antique from the 1920s refused to be unhinged from its hook.
the tiny golden, clasp on the dress, an antique from the 1920s—refused to be unhinged from its hook.
d.
the tiny golden clasp on the dress-an antique from the 1920s—refused to be unhinged from its hook.