[单选题]
A fast spaceship is traveling with a speed of 0.804a.x*1z ks pq xxbln5;c. How fast would light p6/j akkosp)n:g19g n4 mwf y:travel from the headlights of the ship relative to a s 6: nfmg4j/ywsp p9akgkon1: )tationary observer?
A. $0.20 \; c$
B. $0.80 \; c$
C. $1.0 \; c$
D. $1.8 \; c$
