Which of the Following Is an Example of the Development

Which of the following is an example of the development of a phobia through observational learning?

A) After eating a big spaghetti dinner, John gets sick and can no longer stand the smell of spaghetti.
B) Matilda develops a fear of spiders after years of seeing her mother and older sister react with extreme fear whenever they see a spider.
C) After being attacked by a man in an elevator, Evelyn developed a phobia of elevators and other small, confined spaces.
D) Joe was bitten by a dog when he was a child and as a result he now gets nervous whenever he sees any dog.