Which of the Following Statements About the Tails of Comets

Multiple Choice

Which of the following statements about the tails of comets is FALSE?

A) the tail always points away from the Sun
B) some comets have both a gas tail and a dust tail
C) the tail of a comet can sometimes be ahead of the comet in its orbit
D) a comet always has a nice long tail, even when it is far from the Sun
E) the Earth can pass through the tail of a comet without suffering any harm