|Question 20Verbal

Source Texts

Text
Jetties—long, narrow structures that extend from a landmass into the water—are often constructed to protect coastlines from erosion. Jetties can sometimes have the opposite        obstructing the natural flow of sand along the shore can lead to increased erosion in some areas.
Which choice completes the text so that it conforms to the conventions of Standard English?
effect, though,
A
effect, though;
B
effect, though
C
effect; though
D