Read the following context and choose the best option to answer the question.
Context: Jake seemed to have appointed himself some kind of vampire slayer killer , and he tackled the guy the way he had been tackled . It gave Rusty and Linus time to move forward , closer to the car , but he was distracted when there was n't the strong smell of blood and the strangled cry of a mortal . Instead he heard Jake say something in a language he did n't understand but recognized as Italian , and he saw Jake smile , saw the flash of white teeth perfectly .
Question: What may be the reason for Jake smiling ?
Options: 
- He did n't have a plan in place .
 - He likes to do what he does .
 - None of the above choices .
 - He was afraid of the vampire .


He likes to do what he does .