The Lifetime of the Great Red Spot of Jupiter Appears

Multiple Choice

The lifetime of the Great Red Spot of Jupiter appears to be

A) well over 2000 years, from ancient Greek records.
B) about 2 to 4 weeks between successive appearances, similar to sunspots.
C) about one Jupiter orbital period between successive appearances because the spot is produced by tidal effects.
D) at least 300 years, from visual records.