|Question 19Verbal

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Composed of clay and silicate rocks, ____ are typically dark in appearance. M-type asteroids, on the other hand, are composed of nickel-iron and appear much brighter.
Which choice completes the text so that it conforms to the conventions of Standard English?
the C-type classification applies to asteroids 74 Galatea and 90 Antiope, which
A
74 Galatea and 90 Antiope are classified as C-type asteroids, and asteroids
B
C-type asteroids, such as 74 Galatea and 90 Antiope,
C
asteroids, such as the C-type asteroids 74 Galatea and 90 Antiope,
D