|Question 16Verbal

Source Texts

Text
Technologies such as microphones and inkjet printers are made using piezoelectric materials, which generate an internal electric field when pressure is applied to them. The toxic nature of some of these materials recently led a team from the University of Sheffield to investigate how_____
Which choice completes the text so that it conforms to the conventions of Standard English?
could their use be better regulated?
A
their use could be better regulated.
B
their use could be better regulated?
C
could their use be better regulated.
D