Answer: d. that Leila is shocked at what the driver of the convertible did
Step-by-step explanation:
Incredulous in this scenario refers to shock. In this instance, it means that the actions of the driver of the convertible in stopping just to yell at someone else was a shocking sight to Leila.
Other examples of sentences with the word "incredulous" are:
- I stared at him incredulously as he lied to my face
- Haile Selassie was incredulous when the coup against him began.