Identify the type of pronoun error in the sentence. the traffic pattern on the new road is slowed down by too many traffic lights and left turns. it has to be improved. a. reference b. case c. agreement

C: agreement

Explanation:

 The type of pronoun error in the sentence is agreement. In this case, the pronoun it  is not in agreemet with the antecedents. There are two things, two problems that are causing the traffic pattern to slow down: too many traffic lights and left turns. The plural pronoun they  and the plural verb are necessary to correct the sentence.

what was the