|Question 19Verbal

Source Texts

Text
Hummingbird flower mites use electroreception to detect electric fields created by flapping hummingbird wings, allowing mites to travel from flower to flower in hummingbird beaks. Both host detection and transportation are electrically ______ when mites move their legs toward the arriving hummingbird, they are pulled by electrostatic force to the bird's modulated electric fields-a process that occurs in milliseconds.
Which choice completes the text so that it conforms to the conventions of Standard English?
mediated,
A
mediated
B
mediated:
C
mediated and
D