Which Major Astronomical Event Was Apparently Recorded Faithfully by Chinese

Which major astronomical event was apparently recorded faithfully by Chinese astronomers in the Sung Dynasty in a.d.1054?

A) supernova explosion in the Milky Way Galaxy, visible even in daylight
B) total eclipse of the Sun over China
C) rare passage of the planet Venus across the face of the Sun, a solar transit
D) discovery of the planet Mercury