How does the rate of hydrogen consumption of a main- sequence B star compare to the hydrogen consumption of the sun?
A) A B star consumes hydrogen at a rate about 6 to 10 times faster than the sun.
B) A B star consumes hydrogen at a rate about 107 to 108 times faster than the sun.
C) A B star consumes hydrogen at a rate about 103 to 104 times faster than the sun.
D) This cannot be answered using the HR diagram.
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