|Question 18Verbal

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Text
Between April 15 and April 28 each year, particles shed by comet 26P/Grigg-Skjellerup enter Earth's atmosphere at a velocity of 18 kilometers per second. Relatively few of these particles are likely to reach Earth's        since the meteoroids' compression of the air surrounding them causes the vast majority to burn up in the mesosphere, producing the Pi Puppid meteor shower.
Which choice completes the text so that it conforms to the conventions of Standard English?
surface. However,
A
surface; however,
B
surface, however;
C
surface, however,
D