Which statement below BEST expresses the central idea of the section "A New Crisis?" * A. Londoners are not good builders.
B. It is possible that we could experience another situation similar to The Great stink.
C. The city of London is highly unsanitary and was never truly cleaned from the original sewage crisis.

The sentence needs a descriptor of exactly "what" will happen at gurley and marina. in this case, it is the light at the intersection turning green. in this case, the sentence could be rewritten as "the light at the intersection of gurley and montezuma will turn green exactly three seconds after the light at the intersection of gurley and marina."