Select the most appropriate option to substitute the underlined segment in the given sentence. If no substitution is required, select No improvement. A phenomenon called the polar vortex has hit central and eastern parts of the United States. It has brought with it snow, brutally cold temperatures and potentially life-threatening wind chill. (a) potentially life-threaten windy chills (b) No improvement. (c) potentially life-threatened wind chill (d) potential life-threatening wind chill

Options

A. potentially life-threaten windy chills.
B. No improvement
C. potentially life—threatened wind chill.
D. potential life—threatening wind chill.

Answer

B