When you make an inference, you base a conclusion on? a. what the writers purpose is b. what the text states c. what you know d. what the writer believes

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."