[单选题]
If you were to measure youe7.pis1 j:le6 i/sdve r 6;o9l au a)psqt948djx5kiiu pulse rate while in a spaceship moving away from the Sun at a speed close to the speed of light, you wsauioq)t9k9x d86;p uail5 4jould find that it was
A. much faster than normal.
B. much slower than normal.
C. the same as it was here on Earth.